Home / 71,782,539.38-99,059,400.42-39,187,491.38

Finding the Fourth Proportional to 71,782,539.38, 99,059,400.42 and 39,187,491.38

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Solution

The fourth proportional to 71,782,539.38, 99,059,400.42 and 39,187,491.38 is: 54,078,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,782,539.38 : 99,059,400.42 = 39,187,491.38 : x
  2. Step 2: Convert to fraction form
    71,782,539.38/99,059,400.42 = 39,187,491.38/x
  3. Step 3: Cross multiply
    71,782,539.38x = 99,059,400.42 × 39,187,491.38
  4. Step 4: Simplify right side
    71,782,539.38x = 3,881,889,400,066,718.50
  5. Step 5: Solve for x
    x = 3,881,889,400,066,718.50/71,782,539.38
  6. Step 6: Final answer
    x = 54,078,463.00

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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.