Home / 78,834,121.11-108,000,940.68-75,886,696.35

Finding the Fourth Proportional to 78,834,121.11, 108,000,940.68 and 75,886,696.35

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Solution

The fourth proportional to 78,834,121.11, 108,000,940.68 and 75,886,696.35 is: 103,963,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,834,121.11 : 108,000,940.68 = 75,886,696.35 : x
  2. Step 2: Convert to fraction form
    78,834,121.11/108,000,940.68 = 75,886,696.35/x
  3. Step 3: Cross multiply
    78,834,121.11x = 108,000,940.68 × 75,886,696.35
  4. Step 4: Simplify right side
    78,834,121.11x = 8,195,834,590,897,522
  5. Step 5: Solve for x
    x = 8,195,834,590,897,522/78,834,121.11
  6. Step 6: Final answer
    x = 103,963,036.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.