Home / 90,383,025.30-124,728,655.29-49,129,917.68

Finding the Fourth Proportional to 90,383,025.30, 124,728,655.29 and 49,129,917.68

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Solution

The fourth proportional to 90,383,025.30, 124,728,655.29 and 49,129,917.68 is: 67,799,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,383,025.30 : 124,728,655.29 = 49,129,917.68 : x
  2. Step 2: Convert to fraction form
    90,383,025.30/124,728,655.29 = 49,129,917.68/x
  3. Step 3: Cross multiply
    90,383,025.30x = 124,728,655.29 × 49,129,917.68
  4. Step 4: Simplify right side
    90,383,025.30x = 6,127,908,566,111,153
  5. Step 5: Solve for x
    x = 6,127,908,566,111,153/90,383,025.30
  6. Step 6: Final answer
    x = 67,799,330.08

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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.