Home / 78,406,137.36-108,200,558.61-43,598,080.46

Finding the Fourth Proportional to 78,406,137.36, 108,200,558.61 and 43,598,080.46

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Solution

The fourth proportional to 78,406,137.36, 108,200,558.61 and 43,598,080.46 is: 60,165,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,406,137.36 : 108,200,558.61 = 43,598,080.46 : x
  2. Step 2: Convert to fraction form
    78,406,137.36/108,200,558.61 = 43,598,080.46/x
  3. Step 3: Cross multiply
    78,406,137.36x = 108,200,558.61 × 43,598,080.46
  4. Step 4: Simplify right side
    78,406,137.36x = 4,717,336,659,554,723
  5. Step 5: Solve for x
    x = 4,717,336,659,554,723/78,406,137.36
  6. Step 6: Final answer
    x = 60,165,400.55

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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.