Home / 78,414,882.40-117,622,323.60-52,586,849.80

Finding the Fourth Proportional to 78,414,882.40, 117,622,323.60 and 52,586,849.80

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Solution

The fourth proportional to 78,414,882.40, 117,622,323.60 and 52,586,849.80 is: 78,880,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,414,882.40 : 117,622,323.60 = 52,586,849.80 : x
  2. Step 2: Convert to fraction form
    78,414,882.40/117,622,323.60 = 52,586,849.80/x
  3. Step 3: Cross multiply
    78,414,882.40x = 117,622,323.60 × 52,586,849.80
  4. Step 4: Simplify right side
    78,414,882.40x = 6,185,387,464,280,195
  5. Step 5: Solve for x
    x = 6,185,387,464,280,195/78,414,882.40
  6. Step 6: Final answer
    x = 78,880,274.70

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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.