Home / 28,238,557.42-38,967,572.10-15,847,493.82

Finding the Fourth Proportional to 28,238,557.42, 38,967,572.10 and 15,847,493.82

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Solution

The fourth proportional to 28,238,557.42, 38,967,572.10 and 15,847,493.82 is: 21,868,622.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238,557.42 : 38,967,572.10 = 15,847,493.82 : x
  2. Step 2: Convert to fraction form
    28,238,557.42/38,967,572.10 = 15,847,493.82/x
  3. Step 3: Cross multiply
    28,238,557.42x = 38,967,572.10 × 15,847,493.82
  4. Step 4: Simplify right side
    28,238,557.42x = 617,538,358,035,154.50
  5. Step 5: Solve for x
    x = 617,538,358,035,154.50/28,238,557.42
  6. Step 6: Final answer
    x = 21,868,622.71

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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.