Home / 402,408,049.20-603,612,073.80-198,334,705.20

Finding the Fourth Proportional to 402,408,049.20, 603,612,073.80 and 198,334,705.20

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Solution

The fourth proportional to 402,408,049.20, 603,612,073.80 and 198,334,705.20 is: 297,502,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,049.20 : 603,612,073.80 = 198,334,705.20 : x
  2. Step 2: Convert to fraction form
    402,408,049.20/603,612,073.80 = 198,334,705.20/x
  3. Step 3: Cross multiply
    402,408,049.20x = 603,612,073.80 × 198,334,705.20
  4. Step 4: Simplify right side
    402,408,049.20x = 119,717,222,712,283,632
  5. Step 5: Solve for x
    x = 119,717,222,712,283,632/402,408,049.20
  6. Step 6: Final answer
    x = 297,502,057.80

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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.