Home / 318,854,552.70-478,393,803.45-137,157,426.30

Finding the Fourth Proportional to 318,854,552.70, 478,393,803.45 and 137,157,426.30

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Solution

The fourth proportional to 318,854,552.70, 478,393,803.45 and 137,157,426.30 is: 205,784,305.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,854,552.70 : 478,393,803.45 = 137,157,426.30 : x
  2. Step 2: Convert to fraction form
    318,854,552.70/478,393,803.45 = 137,157,426.30/x
  3. Step 3: Cross multiply
    318,854,552.70x = 478,393,803.45 × 137,157,426.30
  4. Step 4: Simplify right side
    318,854,552.70x = 65,615,262,839,070,064
  5. Step 5: Solve for x
    x = 65,615,262,839,070,064/318,854,552.70
  6. Step 6: Final answer
    x = 205,784,305.99

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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.