Home / 99,979,618.80-149,969,428.20-28,176,034.80

Finding the Fourth Proportional to 99,979,618.80, 149,969,428.20 and 28,176,034.80

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Solution

The fourth proportional to 99,979,618.80, 149,969,428.20 and 28,176,034.80 is: 42,264,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,979,618.80 : 149,969,428.20 = 28,176,034.80 : x
  2. Step 2: Convert to fraction form
    99,979,618.80/149,969,428.20 = 28,176,034.80/x
  3. Step 3: Cross multiply
    99,979,618.80x = 149,969,428.20 × 28,176,034.80
  4. Step 4: Simplify right side
    99,979,618.80x = 4,225,543,827,899,301
  5. Step 5: Solve for x
    x = 4,225,543,827,899,301/99,979,618.80
  6. Step 6: Final answer
    x = 42,264,052.20

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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.