Home / 21,505,555.20-32,257,641.60-7,129,286.40

Finding the Fourth Proportional to 21,505,555.20, 32,257,641.60 and 7,129,286.40

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Solution

The fourth proportional to 21,505,555.20, 32,257,641.60 and 7,129,286.40 is: 10,693,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505,555.20 : 32,257,641.60 = 7,129,286.40 : x
  2. Step 2: Convert to fraction form
    21,505,555.20/32,257,641.60 = 7,129,286.40/x
  3. Step 3: Cross multiply
    21,505,555.20x = 32,257,641.60 × 7,129,286.40
  4. Step 4: Simplify right side
    21,505,555.20x = 229,973,965,554,954.25
  5. Step 5: Solve for x
    x = 229,973,965,554,954.25/21,505,555.20
  6. Step 6: Final answer
    x = 10,693,700.46

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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.