Home / 398,436,795.60-597,655,193.40-288,747,373.20

Finding the Fourth Proportional to 398,436,795.60, 597,655,193.40 and 288,747,373.20

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Solution

The fourth proportional to 398,436,795.60, 597,655,193.40 and 288,747,373.20 is: 433,121,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,436,795.60 : 597,655,193.40 = 288,747,373.20 : x
  2. Step 2: Convert to fraction form
    398,436,795.60/597,655,193.40 = 288,747,373.20/x
  3. Step 3: Cross multiply
    398,436,795.60x = 597,655,193.40 × 288,747,373.20
  4. Step 4: Simplify right side
    398,436,795.60x = 172,571,367,173,587,968
  5. Step 5: Solve for x
    x = 172,571,367,173,587,968/398,436,795.60
  6. Step 6: Final answer
    x = 433,121,059.80

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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.