Home / 289,491,260.85-399,501,025.76-157,332,266.93

Finding the Fourth Proportional to 289,491,260.85, 399,501,025.76 and 157,332,266.93

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Solution

The fourth proportional to 289,491,260.85, 399,501,025.76 and 157,332,266.93 is: 217,120,205.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,491,260.85 : 399,501,025.76 = 157,332,266.93 : x
  2. Step 2: Convert to fraction form
    289,491,260.85/399,501,025.76 = 157,332,266.93/x
  3. Step 3: Cross multiply
    289,491,260.85x = 399,501,025.76 × 157,332,266.93
  4. Step 4: Simplify right side
    289,491,260.85x = 62,854,402,025,073,208
  5. Step 5: Solve for x
    x = 62,854,402,025,073,208/289,491,260.85
  6. Step 6: Final answer
    x = 217,120,205.43

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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.