Home / 78,662,206.14-108,519,407.04-75,015,192.25

Finding the Fourth Proportional to 78,662,206.14, 108,519,407.04 and 75,015,192.25

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Solution

The fourth proportional to 78,662,206.14, 108,519,407.04 and 75,015,192.25 is: 103,488,124.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,662,206.14 : 108,519,407.04 = 75,015,192.25 : x
  2. Step 2: Convert to fraction form
    78,662,206.14/108,519,407.04 = 75,015,192.25/x
  3. Step 3: Cross multiply
    78,662,206.14x = 108,519,407.04 × 75,015,192.25
  4. Step 4: Simplify right side
    78,662,206.14x = 8,140,604,181,961,604
  5. Step 5: Solve for x
    x = 8,140,604,181,961,604/78,662,206.14
  6. Step 6: Final answer
    x = 103,488,124.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.