Home / 18,752,677.80-28,123,487.10-7,389,349.80

Finding the Fourth Proportional to 18,752,677.80, 28,123,487.10 and 7,389,349.80

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Solution

The fourth proportional to 18,752,677.80, 28,123,487.10 and 7,389,349.80 is: 11,081,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752,677.80 : 28,123,487.10 = 7,389,349.80 : x
  2. Step 2: Convert to fraction form
    18,752,677.80/28,123,487.10 = 7,389,349.80/x
  3. Step 3: Cross multiply
    18,752,677.80x = 28,123,487.10 × 7,389,349.80
  4. Step 4: Simplify right side
    18,752,677.80x = 207,814,283,777,687.59
  5. Step 5: Solve for x
    x = 207,814,283,777,687.59/18,752,677.80
  6. Step 6: Final answer
    x = 11,081,845.80

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1.5x scale

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.