Home / 21,302,855.28-31,951,133.64-7,836,534

Finding the Fourth Proportional to 21,302,855.28, 31,951,133.64 and 7,836,534

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Solution

The fourth proportional to 21,302,855.28, 31,951,133.64 and 7,836,534 is: 11,753,642.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302,855.28 : 31,951,133.64 = 7,836,534 : x
  2. Step 2: Convert to fraction form
    21,302,855.28/31,951,133.64 = 7,836,534/x
  3. Step 3: Cross multiply
    21,302,855.28x = 31,951,133.64 × 7,836,534
  4. Step 4: Simplify right side
    21,302,855.28x = 250,386,145,108,403.75
  5. Step 5: Solve for x
    x = 250,386,145,108,403.75/21,302,855.28
  6. Step 6: Final answer
    x = 11,753,642.50

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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.