Home / 78,213,616.20-117,362,414.70-32,780,003.40

Finding the Fourth Proportional to 78,213,616.20, 117,362,414.70 and 32,780,003.40

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Solution

The fourth proportional to 78,213,616.20, 117,362,414.70 and 32,780,003.40 is: 49,187,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,213,616.20 : 117,362,414.70 = 32,780,003.40 : x
  2. Step 2: Convert to fraction form
    78,213,616.20/117,362,414.70 = 32,780,003.40/x
  3. Step 3: Cross multiply
    78,213,616.20x = 117,362,414.70 × 32,780,003.40
  4. Step 4: Simplify right side
    78,213,616.20x = 3,847,140,352,898,210
  5. Step 5: Solve for x
    x = 3,847,140,352,898,210/78,213,616.20
  6. Step 6: Final answer
    x = 49,187,603.64

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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.