Home / 18,675,276.10-28,012,914.15-13,195,528.90

Finding the Fourth Proportional to 18,675,276.10, 28,012,914.15 and 13,195,528.90

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Solution

The fourth proportional to 18,675,276.10, 28,012,914.15 and 13,195,528.90 is: 19,793,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675,276.10 : 28,012,914.15 = 13,195,528.90 : x
  2. Step 2: Convert to fraction form
    18,675,276.10/28,012,914.15 = 13,195,528.90/x
  3. Step 3: Cross multiply
    18,675,276.10x = 28,012,914.15 × 13,195,528.90
  4. Step 4: Simplify right side
    18,675,276.10x = 369,645,218,239,543.94
  5. Step 5: Solve for x
    x = 369,645,218,239,543.94/18,675,276.10
  6. Step 6: Final answer
    x = 19,793,293.35

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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.