Home / 408,945,328.20-613,402,245.90-136,316,095.20

Finding the Fourth Proportional to 408,945,328.20, 613,402,245.90 and 136,316,095.20

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Solution

The fourth proportional to 408,945,328.20, 613,402,245.90 and 136,316,095.20 is: 204,468,893.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,945,328.20 : 613,402,245.90 = 136,316,095.20 : x
  2. Step 2: Convert to fraction form
    408,945,328.20/613,402,245.90 = 136,316,095.20/x
  3. Step 3: Cross multiply
    408,945,328.20x = 613,402,245.90 × 136,316,095.20
  4. Step 4: Simplify right side
    408,945,328.20x = 83,616,598,947,998,192
  5. Step 5: Solve for x
    x = 83,616,598,947,998,192/408,945,328.20
  6. Step 6: Final answer
    x = 204,468,893.96

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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.