Home / 91,019,890.80-136,529,836.20-60,408,889.20

Finding the Fourth Proportional to 91,019,890.80, 136,529,836.20 and 60,408,889.20

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Solution

The fourth proportional to 91,019,890.80, 136,529,836.20 and 60,408,889.20 is: 90,613,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,019,890.80 : 136,529,836.20 = 60,408,889.20 : x
  2. Step 2: Convert to fraction form
    91,019,890.80/136,529,836.20 = 60,408,889.20/x
  3. Step 3: Cross multiply
    91,019,890.80x = 136,529,836.20 × 60,408,889.20
  4. Step 4: Simplify right side
    91,019,890.80x = 8,247,615,747,499,949
  5. Step 5: Solve for x
    x = 8,247,615,747,499,949/91,019,890.80
  6. Step 6: Final answer
    x = 90,613,333.80

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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.