Home / 20,944,641,815.30-28,904,218,921.64-11,429,806,849.72

Finding the Fourth Proportional to 20,944,641,815.30, 28,904,218,921.64 and 11,429,806,849.72

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Solution

The fourth proportional to 20,944,641,815.30, 28,904,218,921.64 and 11,429,806,849.72 is: 15,773,468,094.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944,641,815.30 : 28,904,218,921.64 = 11,429,806,849.72 : x
  2. Step 2: Convert to fraction form
    20,944,641,815.30/28,904,218,921.64 = 11,429,806,849.72/x
  3. Step 3: Cross multiply
    20,944,641,815.30x = 28,904,218,921.64 × 11,429,806,849.72
  4. Step 4: Simplify right side
    20,944,641,815.30x = 330,369,639,416,367,284,224
  5. Step 5: Solve for x
    x = 330,369,639,416,367,284,224/20,944,641,815.30
  6. Step 6: Final answer
    x = 15,773,468,094.12

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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.