Home / 65,165,761.20-97,748,641.80-19,729,815.60

Finding the Fourth Proportional to 65,165,761.20, 97,748,641.80 and 19,729,815.60

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Solution

The fourth proportional to 65,165,761.20, 97,748,641.80 and 19,729,815.60 is: 29,594,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,165,761.20 : 97,748,641.80 = 19,729,815.60 : x
  2. Step 2: Convert to fraction form
    65,165,761.20/97,748,641.80 = 19,729,815.60/x
  3. Step 3: Cross multiply
    65,165,761.20x = 97,748,641.80 × 19,729,815.60
  4. Step 4: Simplify right side
    65,165,761.20x = 1,928,562,677,864,452.25
  5. Step 5: Solve for x
    x = 1,928,562,677,864,452.25/65,165,761.20
  6. Step 6: Final answer
    x = 29,594,723.40

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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.