Home / 90,748,616.90-136,122,925.35-30,156,469.70

Finding the Fourth Proportional to 90,748,616.90, 136,122,925.35 and 30,156,469.70

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Solution

The fourth proportional to 90,748,616.90, 136,122,925.35 and 30,156,469.70 is: 45,234,704.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,748,616.90 : 136,122,925.35 = 30,156,469.70 : x
  2. Step 2: Convert to fraction form
    90,748,616.90/136,122,925.35 = 30,156,469.70/x
  3. Step 3: Cross multiply
    90,748,616.90x = 136,122,925.35 × 30,156,469.70
  4. Step 4: Simplify right side
    90,748,616.90x = 4,104,986,873,792,636.50
  5. Step 5: Solve for x
    x = 4,104,986,873,792,636.50/90,748,616.90
  6. Step 6: Final answer
    x = 45,234,704.55

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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.