Home / 90,850,686.30-136,276,029.45-30,266,412.30

Finding the Fourth Proportional to 90,850,686.30, 136,276,029.45 and 30,266,412.30

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Solution

The fourth proportional to 90,850,686.30, 136,276,029.45 and 30,266,412.30 is: 45,399,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,850,686.30 : 136,276,029.45 = 30,266,412.30 : x
  2. Step 2: Convert to fraction form
    90,850,686.30/136,276,029.45 = 30,266,412.30/x
  3. Step 3: Cross multiply
    90,850,686.30x = 136,276,029.45 × 30,266,412.30
  4. Step 4: Simplify right side
    90,850,686.30x = 4,124,586,493,940,642
  5. Step 5: Solve for x
    x = 4,124,586,493,940,642/90,850,686.30
  6. Step 6: Final answer
    x = 45,399,618.45

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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.