Home / 31,155,730.40-42,997,235.28-17,928,961.76

Finding the Fourth Proportional to 31,155,730.40, 42,997,235.28 and 17,928,961.76

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Solution

The fourth proportional to 31,155,730.40, 42,997,235.28 and 17,928,961.76 is: 24,743,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,155,730.40 : 42,997,235.28 = 17,928,961.76 : x
  2. Step 2: Convert to fraction form
    31,155,730.40/42,997,235.28 = 17,928,961.76/x
  3. Step 3: Cross multiply
    31,155,730.40x = 42,997,235.28 × 17,928,961.76
  4. Step 4: Simplify right side
    31,155,730.40x = 770,895,787,120,843
  5. Step 5: Solve for x
    x = 770,895,787,120,843/31,155,730.40
  6. Step 6: Final answer
    x = 24,743,306.52

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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.