Home / 12,671,142.80-17,486,545.86-7,164,399.35

Finding the Fourth Proportional to 12,671,142.80, 17,486,545.86 and 7,164,399.35

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Solution

The fourth proportional to 12,671,142.80, 17,486,545.86 and 7,164,399.35 is: 9,887,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,142.80 : 17,486,545.86 = 7,164,399.35 : x
  2. Step 2: Convert to fraction form
    12,671,142.80/17,486,545.86 = 7,164,399.35/x
  3. Step 3: Cross multiply
    12,671,142.80x = 17,486,545.86 × 7,164,399.35
  4. Step 4: Simplify right side
    12,671,142.80x = 125,280,597,836,845.55
  5. Step 5: Solve for x
    x = 125,280,597,836,845.55/12,671,142.80
  6. Step 6: Final answer
    x = 9,887,079.63

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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.