Home / 128,825,728.40-193,089,293.40-52,110,822.80

Finding the Fourth Proportional to 128,825,728.40, 193,089,293.40 and 52,110,822.80

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Solution

The fourth proportional to 128,825,728.40, 193,089,293.40 and 52,110,822.80 is: 78,105,841.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,825,728.40 : 193,089,293.40 = 52,110,822.80 : x
  2. Step 2: Convert to fraction form
    128,825,728.40/193,089,293.40 = 52,110,822.80/x
  3. Step 3: Cross multiply
    128,825,728.40x = 193,089,293.40 × 52,110,822.80
  4. Step 4: Simplify right side
    128,825,728.40x = 10,062,041,952,944,610
  5. Step 5: Solve for x
    x = 10,062,041,952,944,610/128,825,728.40
  6. Step 6: Final answer
    x = 78,105,841.73

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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.