Home / 442,867,403.40-664,301,105.10-136,119,658.20

Finding the Fourth Proportional to 442,867,403.40, 664,301,105.10 and 136,119,658.20

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Solution

The fourth proportional to 442,867,403.40, 664,301,105.10 and 136,119,658.20 is: 204,179,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,403.40 : 664,301,105.10 = 136,119,658.20 : x
  2. Step 2: Convert to fraction form
    442,867,403.40/664,301,105.10 = 136,119,658.20/x
  3. Step 3: Cross multiply
    442,867,403.40x = 664,301,105.10 × 136,119,658.20
  4. Step 4: Simplify right side
    442,867,403.40x = 90,424,439,368,094,272
  5. Step 5: Solve for x
    x = 90,424,439,368,094,272/442,867,403.40
  6. Step 6: Final answer
    x = 204,179,487.30

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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.