Home / 12,658,378.12-17,468,615.33-6,857,159.86

Finding the Fourth Proportional to 12,658,378.12, 17,468,615.33 and 6,857,159.86

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Solution

The fourth proportional to 12,658,378.12, 17,468,615.33 and 6,857,159.86 is: 9,462,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,378.12 : 17,468,615.33 = 6,857,159.86 : x
  2. Step 2: Convert to fraction form
    12,658,378.12/17,468,615.33 = 6,857,159.86/x
  3. Step 3: Cross multiply
    12,658,378.12x = 17,468,615.33 × 6,857,159.86
  4. Step 4: Simplify right side
    12,658,378.12x = 119,785,087,729,027.78
  5. Step 5: Solve for x
    x = 119,785,087,729,027.78/12,658,378.12
  6. Step 6: Final answer
    x = 9,462,909.60

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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.