Home / 89,751,144.60-134,626,716.90-74,445,643.80

Finding the Fourth Proportional to 89,751,144.60, 134,626,716.90 and 74,445,643.80

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Solution

The fourth proportional to 89,751,144.60, 134,626,716.90 and 74,445,643.80 is: 111,668,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,751,144.60 : 134,626,716.90 = 74,445,643.80 : x
  2. Step 2: Convert to fraction form
    89,751,144.60/134,626,716.90 = 74,445,643.80/x
  3. Step 3: Cross multiply
    89,751,144.60x = 134,626,716.90 × 74,445,643.80
  4. Step 4: Simplify right side
    89,751,144.60x = 10,022,372,612,300,840
  5. Step 5: Solve for x
    x = 10,022,372,612,300,840/89,751,144.60
  6. Step 6: Final answer
    x = 111,668,465.70

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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.