Home / 12,139,672.60-18,206,592.90-7,011,011.80

Finding the Fourth Proportional to 12,139,672.60, 18,206,592.90 and 7,011,011.80

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Solution

The fourth proportional to 12,139,672.60, 18,206,592.90 and 7,011,011.80 is: 10,514,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139,672.60 : 18,206,592.90 = 7,011,011.80 : x
  2. Step 2: Convert to fraction form
    12,139,672.60/18,206,592.90 = 7,011,011.80/x
  3. Step 3: Cross multiply
    12,139,672.60x = 18,206,592.90 × 7,011,011.80
  4. Step 4: Simplify right side
    12,139,672.60x = 127,646,637,659,696.20
  5. Step 5: Solve for x
    x = 127,646,637,659,696.20/12,139,672.60
  6. Step 6: Final answer
    x = 10,514,833.63

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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.