Home / 8,587,920.10-12,881,880.15-7,418,749.90

Finding the Fourth Proportional to 8,587,920.10, 12,881,880.15 and 7,418,749.90

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Solution

The fourth proportional to 8,587,920.10, 12,881,880.15 and 7,418,749.90 is: 11,128,124.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587,920.10 : 12,881,880.15 = 7,418,749.90 : x
  2. Step 2: Convert to fraction form
    8,587,920.10/12,881,880.15 = 7,418,749.90/x
  3. Step 3: Cross multiply
    8,587,920.10x = 12,881,880.15 × 7,418,749.90
  4. Step 4: Simplify right side
    8,587,920.10x = 95,567,447,074,624.50
  5. Step 5: Solve for x
    x = 95,567,447,074,624.50/8,587,920.10
  6. Step 6: Final answer
    x = 11,128,124.85

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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.