Home / 260,610,920.56-390,321,016.80-124,391,963.44

Finding the Fourth Proportional to 260,610,920.56, 390,321,016.80 and 124,391,963.44

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Solution

The fourth proportional to 260,610,920.56, 390,321,016.80 and 124,391,963.44 is: 186,303,772.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,610,920.56 : 390,321,016.80 = 124,391,963.44 : x
  2. Step 2: Convert to fraction form
    260,610,920.56/390,321,016.80 = 124,391,963.44/x
  3. Step 3: Cross multiply
    260,610,920.56x = 390,321,016.80 × 124,391,963.44
  4. Step 4: Simplify right side
    260,610,920.56x = 48,552,797,651,649,224
  5. Step 5: Solve for x
    x = 48,552,797,651,649,224/260,610,920.56
  6. Step 6: Final answer
    x = 186,303,772.49

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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.