Home / 81,785,019.30-122,573,330.55-43,464,891.30

Finding the Fourth Proportional to 81,785,019.30, 122,573,330.55 and 43,464,891.30

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Solution

The fourth proportional to 81,785,019.30, 122,573,330.55 and 43,464,891.30 is: 65,141,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,785,019.30 : 122,573,330.55 = 43,464,891.30 : x
  2. Step 2: Convert to fraction form
    81,785,019.30/122,573,330.55 = 43,464,891.30/x
  3. Step 3: Cross multiply
    81,785,019.30x = 122,573,330.55 × 43,464,891.30
  4. Step 4: Simplify right side
    81,785,019.30x = 5,327,636,488,634,719
  5. Step 5: Solve for x
    x = 5,327,636,488,634,719/81,785,019.30
  6. Step 6: Final answer
    x = 65,141,960.40

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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.