Home / 12,139,671.60-18,206,591.40-7,011,010.80

Finding the Fourth Proportional to 12,139,671.60, 18,206,591.40 and 7,011,010.80

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Solution

The fourth proportional to 12,139,671.60, 18,206,591.40 and 7,011,010.80 is: 10,514,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139,671.60 : 18,206,591.40 = 7,011,010.80 : x
  2. Step 2: Convert to fraction form
    12,139,671.60/18,206,591.40 = 7,011,010.80/x
  3. Step 3: Cross multiply
    12,139,671.60x = 18,206,591.40 × 7,011,010.80
  4. Step 4: Simplify right side
    12,139,671.60x = 127,646,608,936,587.11
  5. Step 5: Solve for x
    x = 127,646,608,936,587.11/12,139,671.60
  6. Step 6: Final answer
    x = 10,514,832.13

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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.