Home / 1,680,321,089.70-2,520,481,634.55-905,480,111.70

Finding the Fourth Proportional to 1,680,321,089.70, 2,520,481,634.55 and 905,480,111.70

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Solution

The fourth proportional to 1,680,321,089.70, 2,520,481,634.55 and 905,480,111.70 is: 1,358,220,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,321,089.70 : 2,520,481,634.55 = 905,480,111.70 : x
  2. Step 2: Convert to fraction form
    1,680,321,089.70/2,520,481,634.55 = 905,480,111.70/x
  3. Step 3: Cross multiply
    1,680,321,089.70x = 2,520,481,634.55 × 905,480,111.70
  4. Step 4: Simplify right side
    1,680,321,089.70x = 2,282,245,991,990,132,992
  5. Step 5: Solve for x
    x = 2,282,245,991,990,132,992/1,680,321,089.70
  6. Step 6: Final answer
    x = 1,358,220,167.55

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Double scale
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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.