Home / 18,785,152.96-28,158,064.88-7,861,601.56

Finding the Fourth Proportional to 18,785,152.96, 28,158,064.88 and 7,861,601.56

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Solution

The fourth proportional to 18,785,152.96, 28,158,064.88 and 7,861,601.56 is: 11,784,172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785,152.96 : 28,158,064.88 = 7,861,601.56 : x
  2. Step 2: Convert to fraction form
    18,785,152.96/28,158,064.88 = 7,861,601.56/x
  3. Step 3: Cross multiply
    18,785,152.96x = 28,158,064.88 × 7,861,601.56
  4. Step 4: Simplify right side
    18,785,152.96x = 221,367,486,736,448.06
  5. Step 5: Solve for x
    x = 221,367,486,736,448.06/18,785,152.96
  6. Step 6: Final answer
    x = 11,784,172.70

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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.