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Finding the Fourth Proportional to 8,680,010.46, 11,978,355.51 and 4,812,531.90

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Solution

The fourth proportional to 8,680,010.46, 11,978,355.51 and 4,812,531.90 is: 6,641,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,010.46 : 11,978,355.51 = 4,812,531.90 : x
  2. Step 2: Convert to fraction form
    8,680,010.46/11,978,355.51 = 4,812,531.90/x
  3. Step 3: Cross multiply
    8,680,010.46x = 11,978,355.51 × 4,812,531.90
  4. Step 4: Simplify right side
    8,680,010.46x = 57,646,218,001,415.77
  5. Step 5: Solve for x
    x = 57,646,218,001,415.77/8,680,010.46
  6. Step 6: Final answer
    x = 6,641,261.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.