Home / 18,500,291.61-27,740,875.63-8,121,262.65

Finding the Fourth Proportional to 18,500,291.61, 27,740,875.63 and 8,121,262.65

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Solution

The fourth proportional to 18,500,291.61, 27,740,875.63 and 8,121,262.65 is: 12,177,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500,291.61 : 27,740,875.63 = 8,121,262.65 : x
  2. Step 2: Convert to fraction form
    18,500,291.61/27,740,875.63 = 8,121,262.65/x
  3. Step 3: Cross multiply
    18,500,291.61x = 27,740,875.63 × 8,121,262.65
  4. Step 4: Simplify right side
    18,500,291.61x = 225,290,937,132,214.22
  5. Step 5: Solve for x
    x = 225,290,937,132,214.22/18,500,291.61
  6. Step 6: Final answer
    x = 12,177,696.54

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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.