Home / 78,707,117.87-108,616,200.02-43,424,921.08

Finding the Fourth Proportional to 78,707,117.87, 108,616,200.02 and 43,424,921.08

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Solution

The fourth proportional to 78,707,117.87, 108,616,200.02 and 43,424,921.08 is: 59,926,599.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,707,117.87 : 108,616,200.02 = 43,424,921.08 : x
  2. Step 2: Convert to fraction form
    78,707,117.87/108,616,200.02 = 43,424,921.08/x
  3. Step 3: Cross multiply
    78,707,117.87x = 108,616,200.02 × 43,424,921.08
  4. Step 4: Simplify right side
    78,707,117.87x = 4,716,649,914,203,531
  5. Step 5: Solve for x
    x = 4,716,649,914,203,531/78,707,117.87
  6. Step 6: Final answer
    x = 59,926,599.29

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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.