Home / 80,554,501.20-120,831,751.80-49,943,499.60

Finding the Fourth Proportional to 80,554,501.20, 120,831,751.80 and 49,943,499.60

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Solution

The fourth proportional to 80,554,501.20, 120,831,751.80 and 49,943,499.60 is: 74,915,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,554,501.20 : 120,831,751.80 = 49,943,499.60 : x
  2. Step 2: Convert to fraction form
    80,554,501.20/120,831,751.80 = 49,943,499.60/x
  3. Step 3: Cross multiply
    80,554,501.20x = 120,831,751.80 × 49,943,499.60
  4. Step 4: Simplify right side
    80,554,501.20x = 6,034,760,547,690,599
  5. Step 5: Solve for x
    x = 6,034,760,547,690,599/80,554,501.20
  6. Step 6: Final answer
    x = 74,915,249.40

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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.