Home / 391,032,902.20-587,176,041.30-310,920,057.40

Finding the Fourth Proportional to 391,032,902.20, 587,176,041.30 and 310,920,057.40

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Solution

The fourth proportional to 391,032,902.20, 587,176,041.30 and 310,920,057.40 is: 466,878,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,032,902.20 : 587,176,041.30 = 310,920,057.40 : x
  2. Step 2: Convert to fraction form
    391,032,902.20/587,176,041.30 = 310,920,057.40/x
  3. Step 3: Cross multiply
    391,032,902.20x = 587,176,041.30 × 310,920,057.40
  4. Step 4: Simplify right side
    391,032,902.20x = 182,564,808,464,900,736
  5. Step 5: Solve for x
    x = 182,564,808,464,900,736/391,032,902.20
  6. Step 6: Final answer
    x = 466,878,381.43

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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.