Home / 398,848,526.20-550,408,862.10-231,625,905.40

Finding the Fourth Proportional to 398,848,526.20, 550,408,862.10 and 231,625,905.40

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Solution

The fourth proportional to 398,848,526.20, 550,408,862.10 and 231,625,905.40 is: 319,642,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,848,526.20 : 550,408,862.10 = 231,625,905.40 : x
  2. Step 2: Convert to fraction form
    398,848,526.20/550,408,862.10 = 231,625,905.40/x
  3. Step 3: Cross multiply
    398,848,526.20x = 550,408,862.10 × 231,625,905.40
  4. Step 4: Simplify right side
    398,848,526.20x = 127,488,951,024,096,256
  5. Step 5: Solve for x
    x = 127,488,951,024,096,256/398,848,526.20
  6. Step 6: Final answer
    x = 319,642,527.55

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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.