Home / 142,569,502.74-196,712,191.98-80,689,839.48

Finding the Fourth Proportional to 142,569,502.74, 196,712,191.98 and 80,689,839.48

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Solution

The fourth proportional to 142,569,502.74, 196,712,191.98 and 80,689,839.48 is: 111,332,893.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,569,502.74 : 196,712,191.98 = 80,689,839.48 : x
  2. Step 2: Convert to fraction form
    142,569,502.74/196,712,191.98 = 80,689,839.48/x
  3. Step 3: Cross multiply
    142,569,502.74x = 196,712,191.98 × 80,689,839.48
  4. Step 4: Simplify right side
    142,569,502.74x = 15,872,675,194,625,144
  5. Step 5: Solve for x
    x = 15,872,675,194,625,144/142,569,502.74
  6. Step 6: Final answer
    x = 111,332,893.01

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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.