Home / 89,135,999.60-133,703,999.40-76,806,568.40

Finding the Fourth Proportional to 89,135,999.60, 133,703,999.40 and 76,806,568.40

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Solution

The fourth proportional to 89,135,999.60, 133,703,999.40 and 76,806,568.40 is: 115,209,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,135,999.60 : 133,703,999.40 = 76,806,568.40 : x
  2. Step 2: Convert to fraction form
    89,135,999.60/133,703,999.40 = 76,806,568.40/x
  3. Step 3: Cross multiply
    89,135,999.60x = 133,703,999.40 × 76,806,568.40
  4. Step 4: Simplify right side
    89,135,999.60x = 10,269,345,375,269,660
  5. Step 5: Solve for x
    x = 10,269,345,375,269,660/89,135,999.60
  6. Step 6: Final answer
    x = 115,209,852.60

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1.5x scale

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.