Home / 82,417,930.20-123,626,895.30-21,006,970.20

Finding the Fourth Proportional to 82,417,930.20, 123,626,895.30 and 21,006,970.20

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Solution

The fourth proportional to 82,417,930.20, 123,626,895.30 and 21,006,970.20 is: 31,510,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,417,930.20 : 123,626,895.30 = 21,006,970.20 : x
  2. Step 2: Convert to fraction form
    82,417,930.20/123,626,895.30 = 21,006,970.20/x
  3. Step 3: Cross multiply
    82,417,930.20x = 123,626,895.30 × 21,006,970.20
  4. Step 4: Simplify right side
    82,417,930.20x = 2,597,026,505,485,620
  5. Step 5: Solve for x
    x = 2,597,026,505,485,620/82,417,930.20
  6. Step 6: Final answer
    x = 31,510,455.30

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Double scale
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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.