Home / 103,520,257.90-155,280,386.85-31,707,342.70

Finding the Fourth Proportional to 103,520,257.90, 155,280,386.85 and 31,707,342.70

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Solution

The fourth proportional to 103,520,257.90, 155,280,386.85 and 31,707,342.70 is: 47,561,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,520,257.90 : 155,280,386.85 = 31,707,342.70 : x
  2. Step 2: Convert to fraction form
    103,520,257.90/155,280,386.85 = 31,707,342.70/x
  3. Step 3: Cross multiply
    103,520,257.90x = 155,280,386.85 × 31,707,342.70
  4. Step 4: Simplify right side
    103,520,257.90x = 4,923,528,440,441,523
  5. Step 5: Solve for x
    x = 4,923,528,440,441,523/103,520,257.90
  6. Step 6: Final answer
    x = 47,561,014.05

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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.