Home / 408,755,764.89-613,142,333.78-146,457,401.49

Finding the Fourth Proportional to 408,755,764.89, 613,142,333.78 and 146,457,401.49

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Solution

The fourth proportional to 408,755,764.89, 613,142,333.78 and 146,457,401.49 is: 219,689,214.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,755,764.89 : 613,142,333.78 = 146,457,401.49 : x
  2. Step 2: Convert to fraction form
    408,755,764.89/613,142,333.78 = 146,457,401.49/x
  3. Step 3: Cross multiply
    408,755,764.89x = 613,142,333.78 × 146,457,401.49
  4. Step 4: Simplify right side
    408,755,764.89x = 89,799,232,948,200,768
  5. Step 5: Solve for x
    x = 89,799,232,948,200,768/408,755,764.89
  6. Step 6: Final answer
    x = 219,689,214.59

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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.