Home / 38,238,874.79-57,375,264.15-20,038,742.78

Finding the Fourth Proportional to 38,238,874.79, 57,375,264.15 and 20,038,742.78

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Solution

The fourth proportional to 38,238,874.79, 57,375,264.15 and 20,038,742.78 is: 30,066,997.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,874.79 : 57,375,264.15 = 20,038,742.78 : x
  2. Step 2: Convert to fraction form
    38,238,874.79/57,375,264.15 = 20,038,742.78/x
  3. Step 3: Cross multiply
    38,238,874.79x = 57,375,264.15 × 20,038,742.78
  4. Step 4: Simplify right side
    38,238,874.79x = 1,149,728,159,949,529
  5. Step 5: Solve for x
    x = 1,149,728,159,949,529/38,238,874.79
  6. Step 6: Final answer
    x = 30,066,997.69

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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.