Home / 28,749,057.40-43,123,586.10-28,371,143.80

Finding the Fourth Proportional to 28,749,057.40, 43,123,586.10 and 28,371,143.80

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Solution

The fourth proportional to 28,749,057.40, 43,123,586.10 and 28,371,143.80 is: 42,556,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749,057.40 : 43,123,586.10 = 28,371,143.80 : x
  2. Step 2: Convert to fraction form
    28,749,057.40/43,123,586.10 = 28,371,143.80/x
  3. Step 3: Cross multiply
    28,749,057.40x = 43,123,586.10 × 28,371,143.80
  4. Step 4: Simplify right side
    28,749,057.40x = 1,223,465,462,414,781.25
  5. Step 5: Solve for x
    x = 1,223,465,462,414,781.25/28,749,057.40
  6. Step 6: Final answer
    x = 42,556,715.70

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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.