Home / 20,434,098.60-28,205,889.22-12,176,751.02

Finding the Fourth Proportional to 20,434,098.60, 28,205,889.22 and 12,176,751.02

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Solution

The fourth proportional to 20,434,098.60, 28,205,889.22 and 12,176,751.02 is: 16,807,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,098.60 : 28,205,889.22 = 12,176,751.02 : x
  2. Step 2: Convert to fraction form
    20,434,098.60/28,205,889.22 = 12,176,751.02/x
  3. Step 3: Cross multiply
    20,434,098.60x = 28,205,889.22 × 12,176,751.02
  4. Step 4: Simplify right side
    20,434,098.60x = 343,456,090,329,642
  5. Step 5: Solve for x
    x = 343,456,090,329,642/20,434,098.60
  6. Step 6: Final answer
    x = 16,807,988.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.