Home / 13,486,543.80-20,229,815.70-11,927,650.20

Finding the Fourth Proportional to 13,486,543.80, 20,229,815.70 and 11,927,650.20

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Solution

The fourth proportional to 13,486,543.80, 20,229,815.70 and 11,927,650.20 is: 17,891,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,543.80 : 20,229,815.70 = 11,927,650.20 : x
  2. Step 2: Convert to fraction form
    13,486,543.80/20,229,815.70 = 11,927,650.20/x
  3. Step 3: Cross multiply
    13,486,543.80x = 20,229,815.70 × 11,927,650.20
  4. Step 4: Simplify right side
    13,486,543.80x = 241,294,165,280,068.12
  5. Step 5: Solve for x
    x = 241,294,165,280,068.12/13,486,543.80
  6. Step 6: Final answer
    x = 17,891,475.30

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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.