Home / 66,591,061.20-99,718,630.20-53,154,133.20

Finding the Fourth Proportional to 66,591,061.20, 99,718,630.20 and 53,154,133.20

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Solution

The fourth proportional to 66,591,061.20, 99,718,630.20 and 53,154,133.20 is: 79,597,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591,061.20 : 99,718,630.20 = 53,154,133.20 : x
  2. Step 2: Convert to fraction form
    66,591,061.20/99,718,630.20 = 53,154,133.20/x
  3. Step 3: Cross multiply
    66,591,061.20x = 99,718,630.20 × 53,154,133.20
  4. Step 4: Simplify right side
    66,591,061.20x = 5,300,457,352,172,343
  5. Step 5: Solve for x
    x = 5,300,457,352,172,343/66,591,061.20
  6. Step 6: Final answer
    x = 79,597,129.95

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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.