Home / 327,112,472.40-490,190,411.70-278,326,188.60

Finding the Fourth Proportional to 327,112,472.40, 490,190,411.70 and 278,326,188.60

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Solution

The fourth proportional to 327,112,472.40, 490,190,411.70 and 278,326,188.60 is: 417,082,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,112,472.40 : 490,190,411.70 = 278,326,188.60 : x
  2. Step 2: Convert to fraction form
    327,112,472.40/490,190,411.70 = 278,326,188.60/x
  3. Step 3: Cross multiply
    327,112,472.40x = 490,190,411.70 × 278,326,188.60
  4. Step 4: Simplify right side
    327,112,472.40x = 136,432,828,976,725,856
  5. Step 5: Solve for x
    x = 136,432,828,976,725,856/327,112,472.40
  6. Step 6: Final answer
    x = 417,082,320.27

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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.