Home / 391,427,150.20-540,171,602.74-230,498,154.88

Finding the Fourth Proportional to 391,427,150.20, 540,171,602.74 and 230,498,154.88

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Solution

The fourth proportional to 391,427,150.20, 540,171,602.74 and 230,498,154.88 is: 318,088,711.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,427,150.20 : 540,171,602.74 = 230,498,154.88 : x
  2. Step 2: Convert to fraction form
    391,427,150.20/540,171,602.74 = 230,498,154.88/x
  3. Step 3: Cross multiply
    391,427,150.20x = 540,171,602.74 × 230,498,154.88
  4. Step 4: Simplify right side
    391,427,150.20x = 124,508,557,750,142,352
  5. Step 5: Solve for x
    x = 124,508,557,750,142,352/391,427,150.20
  6. Step 6: Final answer
    x = 318,088,711.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.