Home / 641,654,598.70-962,481,898.05-156,980,406.70

Finding the Fourth Proportional to 641,654,598.70, 962,481,898.05 and 156,980,406.70

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Solution

The fourth proportional to 641,654,598.70, 962,481,898.05 and 156,980,406.70 is: 235,470,610.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,654,598.70 : 962,481,898.05 = 156,980,406.70 : x
  2. Step 2: Convert to fraction form
    641,654,598.70/962,481,898.05 = 156,980,406.70/x
  3. Step 3: Cross multiply
    641,654,598.70x = 962,481,898.05 × 156,980,406.70
  4. Step 4: Simplify right side
    641,654,598.70x = 151,090,799,797,276,928
  5. Step 5: Solve for x
    x = 151,090,799,797,276,928/641,654,598.70
  6. Step 6: Final answer
    x = 235,470,610.05

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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.