Home / 18,785,153.34-28,158,065.45-7,861,601.93

Finding the Fourth Proportional to 18,785,153.34, 28,158,065.45 and 7,861,601.93

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Solution

The fourth proportional to 18,785,153.34, 28,158,065.45 and 7,861,601.93 is: 11,784,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785,153.34 : 28,158,065.45 = 7,861,601.93 : x
  2. Step 2: Convert to fraction form
    18,785,153.34/28,158,065.45 = 7,861,601.93/x
  3. Step 3: Cross multiply
    18,785,153.34x = 28,158,065.45 × 7,861,601.93
  4. Step 4: Simplify right side
    18,785,153.34x = 221,367,501,717,873.47
  5. Step 5: Solve for x
    x = 221,367,501,717,873.47/18,785,153.34
  6. Step 6: Final answer
    x = 11,784,173.26

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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.