Home / 121,140,314.70-181,710,472.05-72,767,373.90

Finding the Fourth Proportional to 121,140,314.70, 181,710,472.05 and 72,767,373.90

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Solution

The fourth proportional to 121,140,314.70, 181,710,472.05 and 72,767,373.90 is: 109,151,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,140,314.70 : 181,710,472.05 = 72,767,373.90 : x
  2. Step 2: Convert to fraction form
    121,140,314.70/181,710,472.05 = 72,767,373.90/x
  3. Step 3: Cross multiply
    121,140,314.70x = 181,710,472.05 × 72,767,373.90
  4. Step 4: Simplify right side
    121,140,314.70x = 13,222,593,861,207,852
  5. Step 5: Solve for x
    x = 13,222,593,861,207,852/121,140,314.70
  6. Step 6: Final answer
    x = 109,151,060.85

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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.