Home / 116,640,600.80-174,960,901.20-86,407,512.80

Finding the Fourth Proportional to 116,640,600.80, 174,960,901.20 and 86,407,512.80

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Solution

The fourth proportional to 116,640,600.80, 174,960,901.20 and 86,407,512.80 is: 129,611,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,640,600.80 : 174,960,901.20 = 86,407,512.80 : x
  2. Step 2: Convert to fraction form
    116,640,600.80/174,960,901.20 = 86,407,512.80/x
  3. Step 3: Cross multiply
    116,640,600.80x = 174,960,901.20 × 86,407,512.80
  4. Step 4: Simplify right side
    116,640,600.80x = 15,117,936,309,938,534
  5. Step 5: Solve for x
    x = 15,117,936,309,938,534/116,640,600.80
  6. Step 6: Final answer
    x = 129,611,269.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.