Home / 129,747,679,720.83-194,426,073,237.35-115,607,968,792.81

Finding the Fourth Proportional to 129,747,679,720.83, 194,426,073,237.35 and 115,607,968,792.81

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Solution

The fourth proportional to 129,747,679,720.83, 194,426,073,237.35 and 115,607,968,792.81 is: 173,237,806,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,747,679,720.83 : 194,426,073,237.35 = 115,607,968,792.81 : x
  2. Step 2: Convert to fraction form
    129,747,679,720.83/194,426,073,237.35 = 115,607,968,792.81/x
  3. Step 3: Cross multiply
    129,747,679,720.83x = 194,426,073,237.35 × 115,607,968,792.81
  4. Step 4: Simplify right side
    129,747,679,720.83x = 22,477,203,407,332,148,510,720
  5. Step 5: Solve for x
    x = 22,477,203,407,332,148,510,720/129,747,679,720.83
  6. Step 6: Final answer
    x = 173,237,806,299.85

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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.