Home / 285,695,999.40-428,543,999.10-149,423,154.60

Finding the Fourth Proportional to 285,695,999.40, 428,543,999.10 and 149,423,154.60

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Solution

The fourth proportional to 285,695,999.40, 428,543,999.10 and 149,423,154.60 is: 224,134,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,695,999.40 : 428,543,999.10 = 149,423,154.60 : x
  2. Step 2: Convert to fraction form
    285,695,999.40/428,543,999.10 = 149,423,154.60/x
  3. Step 3: Cross multiply
    285,695,999.40x = 428,543,999.10 × 149,423,154.60
  4. Step 4: Simplify right side
    285,695,999.40x = 64,034,396,230,421,560
  5. Step 5: Solve for x
    x = 64,034,396,230,421,560/285,695,999.40
  6. Step 6: Final answer
    x = 224,134,731.90

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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.