Home / 1,314,819,030.80-1,972,228,546.20-635,341,782.80

Finding the Fourth Proportional to 1,314,819,030.80, 1,972,228,546.20 and 635,341,782.80

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Solution

The fourth proportional to 1,314,819,030.80, 1,972,228,546.20 and 635,341,782.80 is: 953,012,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,819,030.80 : 1,972,228,546.20 = 635,341,782.80 : x
  2. Step 2: Convert to fraction form
    1,314,819,030.80/1,972,228,546.20 = 635,341,782.80/x
  3. Step 3: Cross multiply
    1,314,819,030.80x = 1,972,228,546.20 × 635,341,782.80
  4. Step 4: Simplify right side
    1,314,819,030.80x = 1,253,039,200,631,760,128
  5. Step 5: Solve for x
    x = 1,253,039,200,631,760,128/1,314,819,030.80
  6. Step 6: Final answer
    x = 953,012,674.20

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Double scale
Find fourth proportional to 1,314,819,031.80, 1,972,228,547.70 and 635,341,783.80
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.