Home / 18,723,113.20-28,022,461.80-13,590,953.20

Finding the Fourth Proportional to 18,723,113.20, 28,022,461.80 and 13,590,953.20

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Solution

The fourth proportional to 18,723,113.20, 28,022,461.80 and 13,590,953.20 is: 20,341,273.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,113.20 : 28,022,461.80 = 13,590,953.20 : x
  2. Step 2: Convert to fraction form
    18,723,113.20/28,022,461.80 = 13,590,953.20/x
  3. Step 3: Cross multiply
    18,723,113.20x = 28,022,461.80 × 13,590,953.20
  4. Step 4: Simplify right side
    18,723,113.20x = 380,851,966,872,587.75
  5. Step 5: Solve for x
    x = 380,851,966,872,587.75/18,723,113.20
  6. Step 6: Final answer
    x = 20,341,273.53

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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.