Home / 419,861,541.70-579,524,171.25-243,706,288.78

Finding the Fourth Proportional to 419,861,541.70, 579,524,171.25 and 243,706,288.78

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Solution

The fourth proportional to 419,861,541.70, 579,524,171.25 and 243,706,288.78 is: 336,381,571.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,861,541.70 : 579,524,171.25 = 243,706,288.78 : x
  2. Step 2: Convert to fraction form
    419,861,541.70/579,524,171.25 = 243,706,288.78/x
  3. Step 3: Cross multiply
    419,861,541.70x = 579,524,171.25 × 243,706,288.78
  4. Step 4: Simplify right side
    419,861,541.70x = 141,233,685,033,642,672
  5. Step 5: Solve for x
    x = 141,233,685,033,642,672/419,861,541.70
  6. Step 6: Final answer
    x = 336,381,571.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.