Home / 89,676,043.20-134,766,007.20-78,590,577.60

Finding the Fourth Proportional to 89,676,043.20, 134,766,007.20 and 78,590,577.60

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Solution

The fourth proportional to 89,676,043.20, 134,766,007.20 and 78,590,577.60 is: 118,106,664.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,676,043.20 : 134,766,007.20 = 78,590,577.60 : x
  2. Step 2: Convert to fraction form
    89,676,043.20/134,766,007.20 = 78,590,577.60/x
  3. Step 3: Cross multiply
    89,676,043.20x = 134,766,007.20 × 78,590,577.60
  4. Step 4: Simplify right side
    89,676,043.20x = 10,591,338,346,693,756
  5. Step 5: Solve for x
    x = 10,591,338,346,693,756/89,676,043.20
  6. Step 6: Final answer
    x = 118,106,664.49

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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.