Home / 78,705,442.38-117,816,025.04-51,352,838.22

Finding the Fourth Proportional to 78,705,442.38, 117,816,025.04 and 51,352,838.22

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Solution

The fourth proportional to 78,705,442.38, 117,816,025.04 and 51,352,838.22 is: 76,871,269.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,705,442.38 : 117,816,025.04 = 51,352,838.22 : x
  2. Step 2: Convert to fraction form
    78,705,442.38/117,816,025.04 = 51,352,838.22/x
  3. Step 3: Cross multiply
    78,705,442.38x = 117,816,025.04 × 51,352,838.22
  4. Step 4: Simplify right side
    78,705,442.38x = 6,050,187,273,602,589
  5. Step 5: Solve for x
    x = 6,050,187,273,602,589/78,705,442.38
  6. Step 6: Final answer
    x = 76,871,269.52

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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.