Home / 397,402,118.73-548,404,900.43-218,784,223.85

Finding the Fourth Proportional to 397,402,118.73, 548,404,900.43 and 218,784,223.85

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Solution

The fourth proportional to 397,402,118.73, 548,404,900.43 and 218,784,223.85 is: 301,916,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,402,118.73 : 548,404,900.43 = 218,784,223.85 : x
  2. Step 2: Convert to fraction form
    397,402,118.73/548,404,900.43 = 218,784,223.85/x
  3. Step 3: Cross multiply
    397,402,118.73x = 548,404,900.43 × 218,784,223.85
  4. Step 4: Simplify right side
    397,402,118.73x = 119,982,340,492,278,128
  5. Step 5: Solve for x
    x = 119,982,340,492,278,128/397,402,118.73
  6. Step 6: Final answer
    x = 301,916,710.65

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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.