Home / 113,591,845.80-170,387,768.70-77,760,037.80

Finding the Fourth Proportional to 113,591,845.80, 170,387,768.70 and 77,760,037.80

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Solution

The fourth proportional to 113,591,845.80, 170,387,768.70 and 77,760,037.80 is: 116,640,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,591,845.80 : 170,387,768.70 = 77,760,037.80 : x
  2. Step 2: Convert to fraction form
    113,591,845.80/170,387,768.70 = 77,760,037.80/x
  3. Step 3: Cross multiply
    113,591,845.80x = 170,387,768.70 × 77,760,037.80
  4. Step 4: Simplify right side
    113,591,845.80x = 13,249,359,334,769,656
  5. Step 5: Solve for x
    x = 13,249,359,334,769,656/113,591,845.80
  6. Step 6: Final answer
    x = 116,640,056.70

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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.