Home / 80,557,315.20-120,552,537.60-73,754,870.40

Finding the Fourth Proportional to 80,557,315.20, 120,552,537.60 and 73,754,870.40

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Solution

The fourth proportional to 80,557,315.20, 120,552,537.60 and 73,754,870.40 is: 110,372,804.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,557,315.20 : 120,552,537.60 = 73,754,870.40 : x
  2. Step 2: Convert to fraction form
    80,557,315.20/120,552,537.60 = 73,754,870.40/x
  3. Step 3: Cross multiply
    80,557,315.20x = 120,552,537.60 × 73,754,870.40
  4. Step 4: Simplify right side
    80,557,315.20x = 8,891,336,787,079,127
  5. Step 5: Solve for x
    x = 8,891,336,787,079,127/80,557,315.20
  6. Step 6: Final answer
    x = 110,372,804.32

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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.