Home / 25,921,179.20-38,881,768.80-19,874,561.60

Finding the Fourth Proportional to 25,921,179.20, 38,881,768.80 and 19,874,561.60

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Solution

The fourth proportional to 25,921,179.20, 38,881,768.80 and 19,874,561.60 is: 29,811,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,921,179.20 : 38,881,768.80 = 19,874,561.60 : x
  2. Step 2: Convert to fraction form
    25,921,179.20/38,881,768.80 = 19,874,561.60/x
  3. Step 3: Cross multiply
    25,921,179.20x = 38,881,768.80 × 19,874,561.60
  4. Step 4: Simplify right side
    25,921,179.20x = 772,758,109,132,558.12
  5. Step 5: Solve for x
    x = 772,758,109,132,558.12/25,921,179.20
  6. Step 6: Final answer
    x = 29,811,842.40

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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.