Home / 78,643,119.24-108,531,179.10-43,836,061.68

Finding the Fourth Proportional to 78,643,119.24, 108,531,179.10 and 43,836,061.68

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Solution

The fourth proportional to 78,643,119.24, 108,531,179.10 and 43,836,061.68 is: 60,495,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,643,119.24 : 108,531,179.10 = 43,836,061.68 : x
  2. Step 2: Convert to fraction form
    78,643,119.24/108,531,179.10 = 43,836,061.68/x
  3. Step 3: Cross multiply
    78,643,119.24x = 108,531,179.10 × 43,836,061.68
  4. Step 4: Simplify right side
    78,643,119.24x = 4,757,579,461,230,727
  5. Step 5: Solve for x
    x = 4,757,579,461,230,727/78,643,119.24
  6. Step 6: Final answer
    x = 60,495,813.33

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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.