Home / 128,897,067.20-193,345,600.80-52,222,596.80

Finding the Fourth Proportional to 128,897,067.20, 193,345,600.80 and 52,222,596.80

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Solution

The fourth proportional to 128,897,067.20, 193,345,600.80 and 52,222,596.80 is: 78,333,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,897,067.20 : 193,345,600.80 = 52,222,596.80 : x
  2. Step 2: Convert to fraction form
    128,897,067.20/193,345,600.80 = 52,222,596.80/x
  3. Step 3: Cross multiply
    128,897,067.20x = 193,345,600.80 × 52,222,596.80
  4. Step 4: Simplify right side
    128,897,067.20x = 10,097,009,353,632,158
  5. Step 5: Solve for x
    x = 10,097,009,353,632,158/128,897,067.20
  6. Step 6: Final answer
    x = 78,333,895.20

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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.