Home / 8,587,912.60-12,881,868.90-7,418,742.40

Finding the Fourth Proportional to 8,587,912.60, 12,881,868.90 and 7,418,742.40

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Solution

The fourth proportional to 8,587,912.60, 12,881,868.90 and 7,418,742.40 is: 11,128,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587,912.60 : 12,881,868.90 = 7,418,742.40 : x
  2. Step 2: Convert to fraction form
    8,587,912.60/12,881,868.90 = 7,418,742.40/x
  3. Step 3: Cross multiply
    8,587,912.60x = 12,881,868.90 × 7,418,742.40
  4. Step 4: Simplify right side
    8,587,912.60x = 95,567,266,999,671.38
  5. Step 5: Solve for x
    x = 95,567,266,999,671.38/8,587,912.60
  6. Step 6: Final answer
    x = 11,128,113.60

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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.