Home / 471,857,790.30-707,786,685.45-288,191,780.70

Finding the Fourth Proportional to 471,857,790.30, 707,786,685.45 and 288,191,780.70

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Solution

The fourth proportional to 471,857,790.30, 707,786,685.45 and 288,191,780.70 is: 432,287,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,857,790.30 : 707,786,685.45 = 288,191,780.70 : x
  2. Step 2: Convert to fraction form
    471,857,790.30/707,786,685.45 = 288,191,780.70/x
  3. Step 3: Cross multiply
    471,857,790.30x = 707,786,685.45 × 288,191,780.70
  4. Step 4: Simplify right side
    471,857,790.30x = 203,978,305,235,586,272
  5. Step 5: Solve for x
    x = 203,978,305,235,586,272/471,857,790.30
  6. Step 6: Final answer
    x = 432,287,671.05

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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.