Home / 157,429,142.88-217,241,719.57-90,450,255.84

Finding the Fourth Proportional to 157,429,142.88, 217,241,719.57 and 90,450,255.84

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Solution

The fourth proportional to 157,429,142.88, 217,241,719.57 and 90,450,255.84 is: 124,815,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,429,142.88 : 217,241,719.57 = 90,450,255.84 : x
  2. Step 2: Convert to fraction form
    157,429,142.88/217,241,719.57 = 90,450,255.84/x
  3. Step 3: Cross multiply
    157,429,142.88x = 217,241,719.57 × 90,450,255.84
  4. Step 4: Simplify right side
    157,429,142.88x = 19,649,569,114,228,036
  5. Step 5: Solve for x
    x = 19,649,569,114,228,036/157,429,142.88
  6. Step 6: Final answer
    x = 124,815,321.70

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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.