Home / 13,400,884.80-18,491,718.15-7,893,901.08

Finding the Fourth Proportional to 13,400,884.80, 18,491,718.15 and 7,893,901.08

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Solution

The fourth proportional to 13,400,884.80, 18,491,718.15 and 7,893,901.08 is: 10,892,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400,884.80 : 18,491,718.15 = 7,893,901.08 : x
  2. Step 2: Convert to fraction form
    13,400,884.80/18,491,718.15 = 7,893,901.08/x
  3. Step 3: Cross multiply
    13,400,884.80x = 18,491,718.15 × 7,893,901.08
  4. Step 4: Simplify right side
    13,400,884.80x = 145,971,793,875,340.59
  5. Step 5: Solve for x
    x = 145,971,793,875,340.59/13,400,884.80
  6. Step 6: Final answer
    x = 10,892,698.21

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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.