Home / 20,956,383.45-31,434,582.47-9,428,387.31

Finding the Fourth Proportional to 20,956,383.45, 31,434,582.47 and 9,428,387.31

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Solution

The fourth proportional to 20,956,383.45, 31,434,582.47 and 9,428,387.31 is: 14,142,584.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,383.45 : 31,434,582.47 = 9,428,387.31 : x
  2. Step 2: Convert to fraction form
    20,956,383.45/31,434,582.47 = 9,428,387.31/x
  3. Step 3: Cross multiply
    20,956,383.45x = 31,434,582.47 × 9,428,387.31
  4. Step 4: Simplify right side
    20,956,383.45x = 296,377,418,408,154.56
  5. Step 5: Solve for x
    x = 296,377,418,408,154.56/20,956,383.45
  6. Step 6: Final answer
    x = 14,142,584.24

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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.