Home / 20,186,487.80-30,243,646.20-12,284,856.80

Finding the Fourth Proportional to 20,186,487.80, 30,243,646.20 and 12,284,856.80

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Solution

The fourth proportional to 20,186,487.80, 30,243,646.20 and 12,284,856.80 is: 18,405,324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,487.80 : 30,243,646.20 = 12,284,856.80 : x
  2. Step 2: Convert to fraction form
    20,186,487.80/30,243,646.20 = 12,284,856.80/x
  3. Step 3: Cross multiply
    20,186,487.80x = 30,243,646.20 × 12,284,856.80
  4. Step 4: Simplify right side
    20,186,487.80x = 371,538,862,676,864.19
  5. Step 5: Solve for x
    x = 371,538,862,676,864.19/20,186,487.80
  6. Step 6: Final answer
    x = 18,405,324.71

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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.