Home / 18,678,681.60-28,025,020.80-7,327,276.80

Finding the Fourth Proportional to 18,678,681.60, 28,025,020.80 and 7,327,276.80

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Solution

The fourth proportional to 18,678,681.60, 28,025,020.80 and 7,327,276.80 is: 10,993,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,681.60 : 28,025,020.80 = 7,327,276.80 : x
  2. Step 2: Convert to fraction form
    18,678,681.60/28,025,020.80 = 7,327,276.80/x
  3. Step 3: Cross multiply
    18,678,681.60x = 28,025,020.80 × 7,327,276.80
  4. Step 4: Simplify right side
    18,678,681.60x = 205,347,084,727,357.44
  5. Step 5: Solve for x
    x = 205,347,084,727,357.44/18,678,681.60
  6. Step 6: Final answer
    x = 10,993,660.53

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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.