Home / 397,370,729.40-596,736,234.90-215,972,201.40

Finding the Fourth Proportional to 397,370,729.40, 596,736,234.90 and 215,972,201.40

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Solution

The fourth proportional to 397,370,729.40, 596,736,234.90 and 215,972,201.40 is: 324,327,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,370,729.40 : 596,736,234.90 = 215,972,201.40 : x
  2. Step 2: Convert to fraction form
    397,370,729.40/596,736,234.90 = 215,972,201.40/x
  3. Step 3: Cross multiply
    397,370,729.40x = 596,736,234.90 × 215,972,201.40
  4. Step 4: Simplify right side
    397,370,729.40x = 128,878,438,306,500,512
  5. Step 5: Solve for x
    x = 128,878,438,306,500,512/397,370,729.40
  6. Step 6: Final answer
    x = 324,327,960.70

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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.