Home / 71,938,470.17-99,275,018.64-38,898,640.37

Finding the Fourth Proportional to 71,938,470.17, 99,275,018.64 and 38,898,640.37

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Solution

The fourth proportional to 71,938,470.17, 99,275,018.64 and 38,898,640.37 is: 53,680,085.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,938,470.17 : 99,275,018.64 = 38,898,640.37 : x
  2. Step 2: Convert to fraction form
    71,938,470.17/99,275,018.64 = 38,898,640.37/x
  3. Step 3: Cross multiply
    71,938,470.17x = 99,275,018.64 × 38,898,640.37
  4. Step 4: Simplify right side
    71,938,470.17x = 3,861,663,247,802,406.50
  5. Step 5: Solve for x
    x = 3,861,663,247,802,406.50/71,938,470.17
  6. Step 6: Final answer
    x = 53,680,085.75

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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.