Home / 129,356,938.80-194,035,408.20-61,332,490.80

Finding the Fourth Proportional to 129,356,938.80, 194,035,408.20 and 61,332,490.80

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Solution

The fourth proportional to 129,356,938.80, 194,035,408.20 and 61,332,490.80 is: 91,998,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,356,938.80 : 194,035,408.20 = 61,332,490.80 : x
  2. Step 2: Convert to fraction form
    129,356,938.80/194,035,408.20 = 61,332,490.80/x
  3. Step 3: Cross multiply
    129,356,938.80x = 194,035,408.20 × 61,332,490.80
  4. Step 4: Simplify right side
    129,356,938.80x = 11,900,674,888,300,744
  5. Step 5: Solve for x
    x = 11,900,674,888,300,744/129,356,938.80
  6. Step 6: Final answer
    x = 91,998,736.20

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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.