Home / 100,640,016.40-150,960,024.60-90,755,213.80

Finding the Fourth Proportional to 100,640,016.40, 150,960,024.60 and 90,755,213.80

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Solution

The fourth proportional to 100,640,016.40, 150,960,024.60 and 90,755,213.80 is: 136,132,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,640,016.40 : 150,960,024.60 = 90,755,213.80 : x
  2. Step 2: Convert to fraction form
    100,640,016.40/150,960,024.60 = 90,755,213.80/x
  3. Step 3: Cross multiply
    100,640,016.40x = 150,960,024.60 × 90,755,213.80
  4. Step 4: Simplify right side
    100,640,016.40x = 13,700,409,307,826,258
  5. Step 5: Solve for x
    x = 13,700,409,307,826,258/100,640,016.40
  6. Step 6: Final answer
    x = 136,132,820.70

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1.5x scale

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.