Home / 266,335,785.40-399,432,819.30-82,102,905.40

Finding the Fourth Proportional to 266,335,785.40, 399,432,819.30 and 82,102,905.40

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Solution

The fourth proportional to 266,335,785.40, 399,432,819.30 and 82,102,905.40 is: 123,132,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,335,785.40 : 399,432,819.30 = 82,102,905.40 : x
  2. Step 2: Convert to fraction form
    266,335,785.40/399,432,819.30 = 82,102,905.40/x
  3. Step 3: Cross multiply
    266,335,785.40x = 399,432,819.30 × 82,102,905.40
  4. Step 4: Simplify right side
    266,335,785.40x = 32,794,594,976,643,196
  5. Step 5: Solve for x
    x = 32,794,594,976,643,196/266,335,785.40
  6. Step 6: Final answer
    x = 123,132,514.57

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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.