Home / 258,689,325.20-387,467,117.40-229,967,891.60

Finding the Fourth Proportional to 258,689,325.20, 387,467,117.40 and 229,967,891.60

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Solution

The fourth proportional to 258,689,325.20, 387,467,117.40 and 229,967,891.60 is: 344,447,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,689,325.20 : 387,467,117.40 = 229,967,891.60 : x
  2. Step 2: Convert to fraction form
    258,689,325.20/387,467,117.40 = 229,967,891.60/x
  3. Step 3: Cross multiply
    258,689,325.20x = 387,467,117.40 × 229,967,891.60
  4. Step 4: Simplify right side
    258,689,325.20x = 89,104,996,052,807,664
  5. Step 5: Solve for x
    x = 89,104,996,052,807,664/258,689,325.20
  6. Step 6: Final answer
    x = 344,447,904.78

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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.