Home / 71,552,004.30-107,328,006.45-66,513,156.30

Finding the Fourth Proportional to 71,552,004.30, 107,328,006.45 and 66,513,156.30

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Solution

The fourth proportional to 71,552,004.30, 107,328,006.45 and 66,513,156.30 is: 99,769,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,552,004.30 : 107,328,006.45 = 66,513,156.30 : x
  2. Step 2: Convert to fraction form
    71,552,004.30/107,328,006.45 = 66,513,156.30/x
  3. Step 3: Cross multiply
    71,552,004.30x = 107,328,006.45 × 66,513,156.30
  4. Step 4: Simplify right side
    71,552,004.30x = 7,138,724,468,376,258
  5. Step 5: Solve for x
    x = 7,138,724,468,376,258/71,552,004.30
  6. Step 6: Final answer
    x = 99,769,734.45

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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.