Home / 72,580,810.20-108,871,215.30-18,728,122.20

Finding the Fourth Proportional to 72,580,810.20, 108,871,215.30 and 18,728,122.20

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Solution

The fourth proportional to 72,580,810.20, 108,871,215.30 and 18,728,122.20 is: 28,092,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580,810.20 : 108,871,215.30 = 18,728,122.20 : x
  2. Step 2: Convert to fraction form
    72,580,810.20/108,871,215.30 = 18,728,122.20/x
  3. Step 3: Cross multiply
    72,580,810.20x = 108,871,215.30 × 18,728,122.20
  4. Step 4: Simplify right side
    72,580,810.20x = 2,038,953,424,200,909.50
  5. Step 5: Solve for x
    x = 2,038,953,424,200,909.50/72,580,810.20
  6. Step 6: Final answer
    x = 28,092,183.30

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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.