Home / 78,235,385.85-117,368,825.18-27,106,825.05

Finding the Fourth Proportional to 78,235,385.85, 117,368,825.18 and 27,106,825.05

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Solution

The fourth proportional to 78,235,385.85, 117,368,825.18 and 27,106,825.05 is: 40,665,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,235,385.85 : 117,368,825.18 = 27,106,825.05 : x
  2. Step 2: Convert to fraction form
    78,235,385.85/117,368,825.18 = 27,106,825.05/x
  3. Step 3: Cross multiply
    78,235,385.85x = 117,368,825.18 × 27,106,825.05
  4. Step 4: Simplify right side
    78,235,385.85x = 3,181,496,210,342,760.50
  5. Step 5: Solve for x
    x = 3,181,496,210,342,760.50/78,235,385.85
  6. Step 6: Final answer
    x = 40,665,693.35

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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.