Home / 157,725,885.15-217,673,503.61-90,765,368.91

Finding the Fourth Proportional to 157,725,885.15, 217,673,503.61 and 90,765,368.91

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Solution

The fourth proportional to 157,725,885.15, 217,673,503.61 and 90,765,368.91 is: 125,262,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,725,885.15 : 217,673,503.61 = 90,765,368.91 : x
  2. Step 2: Convert to fraction form
    157,725,885.15/217,673,503.61 = 90,765,368.91/x
  3. Step 3: Cross multiply
    157,725,885.15x = 217,673,503.61 × 90,765,368.91
  4. Step 4: Simplify right side
    157,725,885.15x = 19,757,215,856,640,040
  5. Step 5: Solve for x
    x = 19,757,215,856,640,040/157,725,885.15
  6. Step 6: Final answer
    x = 125,262,989.25

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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.