Home / 118,801,943.09-163,943,755.17-65,878,358.30

Finding the Fourth Proportional to 118,801,943.09, 163,943,755.17 and 65,878,358.30

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Solution

The fourth proportional to 118,801,943.09, 163,943,755.17 and 65,878,358.30 is: 90,910,511.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,801,943.09 : 163,943,755.17 = 65,878,358.30 : x
  2. Step 2: Convert to fraction form
    118,801,943.09/163,943,755.17 = 65,878,358.30/x
  3. Step 3: Cross multiply
    118,801,943.09x = 163,943,755.17 × 65,878,358.30
  4. Step 4: Simplify right side
    118,801,943.09x = 10,800,345,444,136,736
  5. Step 5: Solve for x
    x = 10,800,345,444,136,736/118,801,943.09
  6. Step 6: Final answer
    x = 90,910,511.76

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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.