Home / 89,667,339.60-134,501,009.40-81,589,436.40

Finding the Fourth Proportional to 89,667,339.60, 134,501,009.40 and 81,589,436.40

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Solution

The fourth proportional to 89,667,339.60, 134,501,009.40 and 81,589,436.40 is: 122,384,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,667,339.60 : 134,501,009.40 = 81,589,436.40 : x
  2. Step 2: Convert to fraction form
    89,667,339.60/134,501,009.40 = 81,589,436.40/x
  3. Step 3: Cross multiply
    89,667,339.60x = 134,501,009.40 × 81,589,436.40
  4. Step 4: Simplify right side
    89,667,339.60x = 10,973,861,552,177,104
  5. Step 5: Solve for x
    x = 10,973,861,552,177,104/89,667,339.60
  6. Step 6: Final answer
    x = 122,384,154.60

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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.