Home / 103,449,654.70-155,162,040.45-42,859,062.70

Finding the Fourth Proportional to 103,449,654.70, 155,162,040.45 and 42,859,062.70

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Solution

The fourth proportional to 103,449,654.70, 155,162,040.45 and 42,859,062.70 is: 64,283,439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,449,654.70 : 155,162,040.45 = 42,859,062.70 : x
  2. Step 2: Convert to fraction form
    103,449,654.70/155,162,040.45 = 42,859,062.70/x
  3. Step 3: Cross multiply
    103,449,654.70x = 155,162,040.45 × 42,859,062.70
  4. Step 4: Simplify right side
    103,449,654.70x = 6,650,099,620,306,486
  5. Step 5: Solve for x
    x = 6,650,099,620,306,486/103,449,654.70
  6. Step 6: Final answer
    x = 64,283,439.51

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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.