Home / 641,654,593.20-962,481,889.80-156,980,401.20

Finding the Fourth Proportional to 641,654,593.20, 962,481,889.80 and 156,980,401.20

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Solution

The fourth proportional to 641,654,593.20, 962,481,889.80 and 156,980,401.20 is: 235,470,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,654,593.20 : 962,481,889.80 = 156,980,401.20 : x
  2. Step 2: Convert to fraction form
    641,654,593.20/962,481,889.80 = 156,980,401.20/x
  3. Step 3: Cross multiply
    641,654,593.20x = 962,481,889.80 × 156,980,401.20
  4. Step 4: Simplify right side
    641,654,593.20x = 151,090,793,208,538,176
  5. Step 5: Solve for x
    x = 151,090,793,208,538,176/641,654,593.20
  6. Step 6: Final answer
    x = 235,470,601.80

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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.