Home / 103,449,656.20-155,162,042.70-42,859,064.20

Finding the Fourth Proportional to 103,449,656.20, 155,162,042.70 and 42,859,064.20

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Solution

The fourth proportional to 103,449,656.20, 155,162,042.70 and 42,859,064.20 is: 64,283,441.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,449,656.20 : 155,162,042.70 = 42,859,064.20 : x
  2. Step 2: Convert to fraction form
    103,449,656.20/155,162,042.70 = 42,859,064.20/x
  3. Step 3: Cross multiply
    103,449,656.20x = 155,162,042.70 × 42,859,064.20
  4. Step 4: Simplify right side
    103,449,656.20x = 6,650,099,949,482,441
  5. Step 5: Solve for x
    x = 6,650,099,949,482,441/103,449,656.20
  6. Step 6: Final answer
    x = 64,283,441.76

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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.