Home / 71,666,938.08-98,900,371.44-40,727,167.20

Finding the Fourth Proportional to 71,666,938.08, 98,900,371.44 and 40,727,167.20

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Solution

The fourth proportional to 71,666,938.08, 98,900,371.44 and 40,727,167.20 is: 56,203,488.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,666,938.08 : 98,900,371.44 = 40,727,167.20 : x
  2. Step 2: Convert to fraction form
    71,666,938.08/98,900,371.44 = 40,727,167.20/x
  3. Step 3: Cross multiply
    71,666,938.08x = 98,900,371.44 × 40,727,167.20
  4. Step 4: Simplify right side
    71,666,938.08x = 4,027,931,963,778,985
  5. Step 5: Solve for x
    x = 4,027,931,963,778,985/71,666,938.08
  6. Step 6: Final answer
    x = 56,203,488.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.