Home / 12,431,640.89-18,650,346.12-3,911,755.93

Finding the Fourth Proportional to 12,431,640.89, 18,650,346.12 and 3,911,755.93

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Solution

The fourth proportional to 12,431,640.89, 18,650,346.12 and 3,911,755.93 is: 5,868,541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431,640.89 : 18,650,346.12 = 3,911,755.93 : x
  2. Step 2: Convert to fraction form
    12,431,640.89/18,650,346.12 = 3,911,755.93/x
  3. Step 3: Cross multiply
    12,431,640.89x = 18,650,346.12 × 3,911,755.93
  4. Step 4: Simplify right side
    12,431,640.89x = 72,955,601,984,836.64
  5. Step 5: Solve for x
    x = 72,955,601,984,836.64/12,431,640.89
  6. Step 6: Final answer
    x = 5,868,541.62

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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.