Home / 389,964,930.12-584,947,359.67-171,615,272.14

Finding the Fourth Proportional to 389,964,930.12, 584,947,359.67 and 171,615,272.14

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Solution

The fourth proportional to 389,964,930.12, 584,947,359.67 and 171,615,272.14 is: 257,422,892.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,964,930.12 : 584,947,359.67 = 171,615,272.14 : x
  2. Step 2: Convert to fraction form
    389,964,930.12/584,947,359.67 = 171,615,272.14/x
  3. Step 3: Cross multiply
    389,964,930.12x = 584,947,359.67 × 171,615,272.14
  4. Step 4: Simplify right side
    389,964,930.12x = 100,385,900,315,450,096
  5. Step 5: Solve for x
    x = 100,385,900,315,450,096/389,964,930.12
  6. Step 6: Final answer
    x = 257,422,892.58

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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.