Home / 20,826,955.28-31,239,499.80-5,680,836.56

Finding the Fourth Proportional to 20,826,955.28, 31,239,499.80 and 5,680,836.56

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Solution

The fourth proportional to 20,826,955.28, 31,239,499.80 and 5,680,836.56 is: 8,521,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826,955.28 : 31,239,499.80 = 5,680,836.56 : x
  2. Step 2: Convert to fraction form
    20,826,955.28/31,239,499.80 = 5,680,836.56/x
  3. Step 3: Cross multiply
    20,826,955.28x = 31,239,499.80 × 5,680,836.56
  4. Step 4: Simplify right side
    20,826,955.28x = 177,466,492,579,952.69
  5. Step 5: Solve for x
    x = 177,466,492,579,952.69/20,826,955.28
  6. Step 6: Final answer
    x = 8,521,000.32

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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.