Home / 91,008,040.80-136,512,061.20-56,995,816.80

Finding the Fourth Proportional to 91,008,040.80, 136,512,061.20 and 56,995,816.80

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Solution

The fourth proportional to 91,008,040.80, 136,512,061.20 and 56,995,816.80 is: 85,493,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,008,040.80 : 136,512,061.20 = 56,995,816.80 : x
  2. Step 2: Convert to fraction form
    91,008,040.80/136,512,061.20 = 56,995,816.80/x
  3. Step 3: Cross multiply
    91,008,040.80x = 136,512,061.20 × 56,995,816.80
  4. Step 4: Simplify right side
    91,008,040.80x = 7,780,616,431,145,587
  5. Step 5: Solve for x
    x = 7,780,616,431,145,587/91,008,040.80
  6. Step 6: Final answer
    x = 85,493,725.20

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Double scale
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Similar ratio
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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.