Home / 1,073,088,075.70-1,609,632,113.55-664,941,387.70

Finding the Fourth Proportional to 1,073,088,075.70, 1,609,632,113.55 and 664,941,387.70

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Solution

The fourth proportional to 1,073,088,075.70, 1,609,632,113.55 and 664,941,387.70 is: 997,412,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,088,075.70 : 1,609,632,113.55 = 664,941,387.70 : x
  2. Step 2: Convert to fraction form
    1,073,088,075.70/1,609,632,113.55 = 664,941,387.70/x
  3. Step 3: Cross multiply
    1,073,088,075.70x = 1,609,632,113.55 × 664,941,387.70
  4. Step 4: Simplify right side
    1,073,088,075.70x = 1,070,311,011,270,420,992
  5. Step 5: Solve for x
    x = 1,070,311,011,270,420,992/1,073,088,075.70
  6. Step 6: Final answer
    x = 997,412,081.55

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Half scale
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Double scale
Find fourth proportional to 1,073,088,076.70, 1,609,632,115.05 and 664,941,388.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.