Home / 472,392,755.20-708,589,132.80-318,204,006.40

Finding the Fourth Proportional to 472,392,755.20, 708,589,132.80 and 318,204,006.40

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Solution

The fourth proportional to 472,392,755.20, 708,589,132.80 and 318,204,006.40 is: 477,306,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,755.20 : 708,589,132.80 = 318,204,006.40 : x
  2. Step 2: Convert to fraction form
    472,392,755.20/708,589,132.80 = 318,204,006.40/x
  3. Step 3: Cross multiply
    472,392,755.20x = 708,589,132.80 × 318,204,006.40
  4. Step 4: Simplify right side
    472,392,755.20x = 225,475,900,948,461,632
  5. Step 5: Solve for x
    x = 225,475,900,948,461,632/472,392,755.20
  6. Step 6: Final answer
    x = 477,306,009.60

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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.