Home / 103,890,435.20-155,732,863.80-49,206,905.90

Finding the Fourth Proportional to 103,890,435.20, 155,732,863.80 and 49,206,905.90

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Solution

The fourth proportional to 103,890,435.20, 155,732,863.80 and 49,206,905.90 is: 73,761,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,890,435.20 : 155,732,863.80 = 49,206,905.90 : x
  2. Step 2: Convert to fraction form
    103,890,435.20/155,732,863.80 = 49,206,905.90/x
  3. Step 3: Cross multiply
    103,890,435.20x = 155,732,863.80 × 49,206,905.90
  4. Step 4: Simplify right side
    103,890,435.20x = 7,663,132,374,544,117
  5. Step 5: Solve for x
    x = 7,663,132,374,544,117/103,890,435.20
  6. Step 6: Final answer
    x = 73,761,673.63

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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.