Home / 472,840,018.80-709,260,028.20-408,216,793.20

Finding the Fourth Proportional to 472,840,018.80, 709,260,028.20 and 408,216,793.20

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Solution

The fourth proportional to 472,840,018.80, 709,260,028.20 and 408,216,793.20 is: 612,325,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,840,018.80 : 709,260,028.20 = 408,216,793.20 : x
  2. Step 2: Convert to fraction form
    472,840,018.80/709,260,028.20 = 408,216,793.20/x
  3. Step 3: Cross multiply
    472,840,018.80x = 709,260,028.20 × 408,216,793.20
  4. Step 4: Simplify right side
    472,840,018.80x = 289,531,854,256,745,600
  5. Step 5: Solve for x
    x = 289,531,854,256,745,600/472,840,018.80
  6. Step 6: Final answer
    x = 612,325,189.80

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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.