Home / 25,869,712.80-38,810,098.80-7,920,631.20

Finding the Fourth Proportional to 25,869,712.80, 38,810,098.80 and 7,920,631.20

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Solution

The fourth proportional to 25,869,712.80, 38,810,098.80 and 7,920,631.20 is: 11,882,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,869,712.80 : 38,810,098.80 = 7,920,631.20 : x
  2. Step 2: Convert to fraction form
    25,869,712.80/38,810,098.80 = 7,920,631.20/x
  3. Step 3: Cross multiply
    25,869,712.80x = 38,810,098.80 × 7,920,631.20
  4. Step 4: Simplify right side
    25,869,712.80x = 307,400,479,430,362.56
  5. Step 5: Solve for x
    x = 307,400,479,430,362.56/25,869,712.80
  6. Step 6: Final answer
    x = 11,882,639.82

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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.