Home / 78,384,989.26-108,171,705.77-43,105,069.34

Finding the Fourth Proportional to 78,384,989.26, 108,171,705.77 and 43,105,069.34

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Solution

The fourth proportional to 78,384,989.26, 108,171,705.77 and 43,105,069.34 is: 59,485,226.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,989.26 : 108,171,705.77 = 43,105,069.34 : x
  2. Step 2: Convert to fraction form
    78,384,989.26/108,171,705.77 = 43,105,069.34/x
  3. Step 3: Cross multiply
    78,384,989.26x = 108,171,705.77 × 43,105,069.34
  4. Step 4: Simplify right side
    78,384,989.26x = 4,662,748,877,652,832
  5. Step 5: Solve for x
    x = 4,662,748,877,652,832/78,384,989.26
  6. Step 6: Final answer
    x = 59,485,226.98

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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.