Home / 129,727,123.92-179,023,448.70-70,989,803.04

Finding the Fourth Proportional to 129,727,123.92, 179,023,448.70 and 70,989,803.04

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Solution

The fourth proportional to 129,727,123.92, 179,023,448.70 and 70,989,803.04 is: 97,965,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,727,123.92 : 179,023,448.70 = 70,989,803.04 : x
  2. Step 2: Convert to fraction form
    129,727,123.92/179,023,448.70 = 70,989,803.04/x
  3. Step 3: Cross multiply
    129,727,123.92x = 179,023,448.70 × 70,989,803.04
  4. Step 4: Simplify right side
    129,727,123.92x = 12,708,839,362,754,544
  5. Step 5: Solve for x
    x = 12,708,839,362,754,544/129,727,123.92
  6. Step 6: Final answer
    x = 97,965,937.88

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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.