Home / 215,814,016.80-323,721,025.20-193,139,200.80

Finding the Fourth Proportional to 215,814,016.80, 323,721,025.20 and 193,139,200.80

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Solution

The fourth proportional to 215,814,016.80, 323,721,025.20 and 193,139,200.80 is: 289,708,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,814,016.80 : 323,721,025.20 = 193,139,200.80 : x
  2. Step 2: Convert to fraction form
    215,814,016.80/323,721,025.20 = 193,139,200.80/x
  3. Step 3: Cross multiply
    215,814,016.80x = 323,721,025.20 × 193,139,200.80
  4. Step 4: Simplify right side
    215,814,016.80x = 62,523,220,089,284,664
  5. Step 5: Solve for x
    x = 62,523,220,089,284,664/215,814,016.80
  6. Step 6: Final answer
    x = 289,708,801.20

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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.