Home / 78,095,781.12-117,061,078.08-28,880,009.52

Finding the Fourth Proportional to 78,095,781.12, 117,061,078.08 and 28,880,009.52

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Solution

The fourth proportional to 78,095,781.12, 117,061,078.08 and 28,880,009.52 is: 43,289,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,095,781.12 : 117,061,078.08 = 28,880,009.52 : x
  2. Step 2: Convert to fraction form
    78,095,781.12/117,061,078.08 = 28,880,009.52/x
  3. Step 3: Cross multiply
    78,095,781.12x = 117,061,078.08 × 28,880,009.52
  4. Step 4: Simplify right side
    78,095,781.12x = 3,380,725,049,371,863
  5. Step 5: Solve for x
    x = 3,380,725,049,371,863/78,095,781.12
  6. Step 6: Final answer
    x = 43,289,470.97

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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.