Home / 128,825,701.40-193,089,252.90-52,110,795.80

Finding the Fourth Proportional to 128,825,701.40, 193,089,252.90 and 52,110,795.80

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Solution

The fourth proportional to 128,825,701.40, 193,089,252.90 and 52,110,795.80 is: 78,105,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,825,701.40 : 193,089,252.90 = 52,110,795.80 : x
  2. Step 2: Convert to fraction form
    128,825,701.40/193,089,252.90 = 52,110,795.80/x
  3. Step 3: Cross multiply
    128,825,701.40x = 193,089,252.90 × 52,110,795.80
  4. Step 4: Simplify right side
    128,825,701.40x = 10,062,034,629,046,458
  5. Step 5: Solve for x
    x = 10,062,034,629,046,458/128,825,701.40
  6. Step 6: Final answer
    x = 78,105,801.25

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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.