Home / 19,178,737.20-28,743,611.40-7,806,337.20

Finding the Fourth Proportional to 19,178,737.20, 28,743,611.40 and 7,806,337.20

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Solution

The fourth proportional to 19,178,737.20, 28,743,611.40 and 7,806,337.20 is: 11,699,535.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178,737.20 : 28,743,611.40 = 7,806,337.20 : x
  2. Step 2: Convert to fraction form
    19,178,737.20/28,743,611.40 = 7,806,337.20/x
  3. Step 3: Cross multiply
    19,178,737.20x = 28,743,611.40 × 7,806,337.20
  4. Step 4: Simplify right side
    19,178,737.20x = 224,382,322,934,164.06
  5. Step 5: Solve for x
    x = 224,382,322,934,164.06/19,178,737.20
  6. Step 6: Final answer
    x = 11,699,535.82

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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.