Home / 28,204,932.43-42,307,412.55-18,618,070.24

Finding the Fourth Proportional to 28,204,932.43, 42,307,412.55 and 18,618,070.24

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Solution

The fourth proportional to 28,204,932.43, 42,307,412.55 and 18,618,070.24 is: 27,927,114.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204,932.43 : 42,307,412.55 = 18,618,070.24 : x
  2. Step 2: Convert to fraction form
    28,204,932.43/42,307,412.55 = 18,618,070.24/x
  3. Step 3: Cross multiply
    28,204,932.43x = 42,307,412.55 × 18,618,070.24
  4. Step 4: Simplify right side
    28,204,932.43x = 787,682,378,528,557.38
  5. Step 5: Solve for x
    x = 787,682,378,528,557.38/28,204,932.43
  6. Step 6: Final answer
    x = 27,927,114.54

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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.