Home / 78,068,518.26-107,735,193.09-43,261,790.10

Finding the Fourth Proportional to 78,068,518.26, 107,735,193.09 and 43,261,790.10

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Solution

The fourth proportional to 78,068,518.26, 107,735,193.09 and 43,261,790.10 is: 59,701,623.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,068,518.26 : 107,735,193.09 = 43,261,790.10 : x
  2. Step 2: Convert to fraction form
    78,068,518.26/107,735,193.09 = 43,261,790.10/x
  3. Step 3: Cross multiply
    78,068,518.26x = 107,735,193.09 × 43,261,790.10
  4. Step 4: Simplify right side
    78,068,518.26x = 4,660,817,309,842,551
  5. Step 5: Solve for x
    x = 4,660,817,309,842,551/78,068,518.26
  6. Step 6: Final answer
    x = 59,701,623.83

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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.