Home / 90,837,728.10-136,256,592.15-66,444,586.20

Finding the Fourth Proportional to 90,837,728.10, 136,256,592.15 and 66,444,586.20

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Solution

The fourth proportional to 90,837,728.10, 136,256,592.15 and 66,444,586.20 is: 99,666,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,837,728.10 : 136,256,592.15 = 66,444,586.20 : x
  2. Step 2: Convert to fraction form
    90,837,728.10/136,256,592.15 = 66,444,586.20/x
  3. Step 3: Cross multiply
    90,837,728.10x = 136,256,592.15 × 66,444,586.20
  4. Step 4: Simplify right side
    90,837,728.10x = 9,053,512,882,428,920
  5. Step 5: Solve for x
    x = 9,053,512,882,428,920/90,837,728.10
  6. Step 6: Final answer
    x = 99,666,879.30

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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.