Home / 318,982,041.40-478,697,010.90-137,359,564.60

Finding the Fourth Proportional to 318,982,041.40, 478,697,010.90 and 137,359,564.60

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Solution

The fourth proportional to 318,982,041.40, 478,697,010.90 and 137,359,564.60 is: 206,135,783.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,982,041.40 : 478,697,010.90 = 137,359,564.60 : x
  2. Step 2: Convert to fraction form
    318,982,041.40/478,697,010.90 = 137,359,564.60/x
  3. Step 3: Cross multiply
    318,982,041.40x = 478,697,010.90 × 137,359,564.60
  4. Step 4: Simplify right side
    318,982,041.40x = 65,753,612,992,545,448
  5. Step 5: Solve for x
    x = 65,753,612,992,545,448/318,982,041.40
  6. Step 6: Final answer
    x = 206,135,783.39

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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.