Home / 8,142,915.12-11,238,605.10-4,707,147.84

Finding the Fourth Proportional to 8,142,915.12, 11,238,605.10 and 4,707,147.84

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Solution

The fourth proportional to 8,142,915.12, 11,238,605.10 and 4,707,147.84 is: 6,496,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,915.12 : 11,238,605.10 = 4,707,147.84 : x
  2. Step 2: Convert to fraction form
    8,142,915.12/11,238,605.10 = 4,707,147.84/x
  3. Step 3: Cross multiply
    8,142,915.12x = 11,238,605.10 × 4,707,147.84
  4. Step 4: Simplify right side
    8,142,915.12x = 52,901,775,721,077.98
  5. Step 5: Solve for x
    x = 52,901,775,721,077.98/8,142,915.12
  6. Step 6: Final answer
    x = 6,496,663.04

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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.