Home / 82,377,346.20-123,566,019.30-20,966,386.20

Finding the Fourth Proportional to 82,377,346.20, 123,566,019.30 and 20,966,386.20

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Solution

The fourth proportional to 82,377,346.20, 123,566,019.30 and 20,966,386.20 is: 31,449,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,377,346.20 : 123,566,019.30 = 20,966,386.20 : x
  2. Step 2: Convert to fraction form
    82,377,346.20/123,566,019.30 = 20,966,386.20/x
  3. Step 3: Cross multiply
    82,377,346.20x = 123,566,019.30 × 20,966,386.20
  4. Step 4: Simplify right side
    82,377,346.20x = 2,590,732,881,840,453.50
  5. Step 5: Solve for x
    x = 2,590,732,881,840,453.50/82,377,346.20
  6. Step 6: Final answer
    x = 31,449,579.30

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Double scale
Find fourth proportional to 82,377,347.20, 123,566,020.80 and 20,966,387.20
Similar ratio
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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.