Home / 28,138,593.87-38,832,473.15-15,579,648.45

Finding the Fourth Proportional to 28,138,593.87, 38,832,473.15 and 15,579,648.45

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Solution

The fourth proportional to 28,138,593.87, 38,832,473.15 and 15,579,648.45 is: 21,500,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138,593.87 : 38,832,473.15 = 15,579,648.45 : x
  2. Step 2: Convert to fraction form
    28,138,593.87/38,832,473.15 = 15,579,648.45/x
  3. Step 3: Cross multiply
    28,138,593.87x = 38,832,473.15 × 15,579,648.45
  4. Step 4: Simplify right side
    28,138,593.87x = 604,996,280,014,391.50
  5. Step 5: Solve for x
    x = 604,996,280,014,391.50/28,138,593.87
  6. Step 6: Final answer
    x = 21,500,586.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.