Home / 21,216,620.10-31,750,280.55-19,425,029.70

Finding the Fourth Proportional to 21,216,620.10, 31,750,280.55 and 19,425,029.70

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Solution

The fourth proportional to 21,216,620.10, 31,750,280.55 and 19,425,029.70 is: 29,069,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,620.10 : 31,750,280.55 = 19,425,029.70 : x
  2. Step 2: Convert to fraction form
    21,216,620.10/31,750,280.55 = 19,425,029.70/x
  3. Step 3: Cross multiply
    21,216,620.10x = 31,750,280.55 × 19,425,029.70
  4. Step 4: Simplify right side
    21,216,620.10x = 616,750,142,667,082.38
  5. Step 5: Solve for x
    x = 616,750,142,667,082.38/21,216,620.10
  6. Step 6: Final answer
    x = 29,069,198.57

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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.