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Finding the Fourth Proportional to 289,443,661.59, 433,921,392.42 and 125,557,959.82

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Solution

The fourth proportional to 289,443,661.59, 433,921,392.42 and 125,557,959.82 is: 188,231,051.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,443,661.59 : 433,921,392.42 = 125,557,959.82 : x
  2. Step 2: Convert to fraction form
    289,443,661.59/433,921,392.42 = 125,557,959.82/x
  3. Step 3: Cross multiply
    289,443,661.59x = 433,921,392.42 × 125,557,959.82
  4. Step 4: Simplify right side
    289,443,661.59x = 54,482,284,754,508,808
  5. Step 5: Solve for x
    x = 54,482,284,754,508,808/289,443,661.59
  6. Step 6: Final answer
    x = 188,231,051.44

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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.