Home / 80,554,539.20-120,831,808.80-49,943,537.60

Finding the Fourth Proportional to 80,554,539.20, 120,831,808.80 and 49,943,537.60

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Solution

The fourth proportional to 80,554,539.20, 120,831,808.80 and 49,943,537.60 is: 74,915,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,554,539.20 : 120,831,808.80 = 49,943,537.60 : x
  2. Step 2: Convert to fraction form
    80,554,539.20/120,831,808.80 = 49,943,537.60/x
  3. Step 3: Cross multiply
    80,554,539.20x = 120,831,808.80 × 49,943,537.60
  4. Step 4: Simplify right side
    80,554,539.20x = 6,034,767,986,078,811
  5. Step 5: Solve for x
    x = 6,034,767,986,078,811/80,554,539.20
  6. Step 6: Final answer
    x = 74,915,306.40

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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.