Home / 20,956,390.46-31,434,592.96-9,428,394.32

Finding the Fourth Proportional to 20,956,390.46, 31,434,592.96 and 9,428,394.32

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Solution

The fourth proportional to 20,956,390.46, 31,434,592.96 and 9,428,394.32 is: 14,142,594.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,390.46 : 31,434,592.96 = 9,428,394.32 : x
  2. Step 2: Convert to fraction form
    20,956,390.46/31,434,592.96 = 9,428,394.32/x
  3. Step 3: Cross multiply
    20,956,390.46x = 31,434,592.96 × 9,428,394.32
  4. Step 4: Simplify right side
    20,956,390.46x = 296,377,737,715,576
  5. Step 5: Solve for x
    x = 296,377,737,715,576/20,956,390.46
  6. Step 6: Final answer
    x = 14,142,594.75

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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.