Home / 89,667,048.60-134,500,572.90-81,589,145.40

Finding the Fourth Proportional to 89,667,048.60, 134,500,572.90 and 81,589,145.40

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Solution

The fourth proportional to 89,667,048.60, 134,500,572.90 and 81,589,145.40 is: 122,383,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,667,048.60 : 134,500,572.90 = 81,589,145.40 : x
  2. Step 2: Convert to fraction form
    89,667,048.60/134,500,572.90 = 81,589,145.40/x
  3. Step 3: Cross multiply
    89,667,048.60x = 134,500,572.90 × 81,589,145.40
  4. Step 4: Simplify right side
    89,667,048.60x = 10,973,786,798,721,400
  5. Step 5: Solve for x
    x = 10,973,786,798,721,400/89,667,048.60
  6. Step 6: Final answer
    x = 122,383,718.10

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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.