Home / 19,419,947.80-29,129,921.70-6,639,314.20

Finding the Fourth Proportional to 19,419,947.80, 29,129,921.70 and 6,639,314.20

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Solution

The fourth proportional to 19,419,947.80, 29,129,921.70 and 6,639,314.20 is: 9,958,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419,947.80 : 29,129,921.70 = 6,639,314.20 : x
  2. Step 2: Convert to fraction form
    19,419,947.80/29,129,921.70 = 6,639,314.20/x
  3. Step 3: Cross multiply
    19,419,947.80x = 29,129,921.70 × 6,639,314.20
  4. Step 4: Simplify right side
    19,419,947.80x = 193,402,702,787,698.12
  5. Step 5: Solve for x
    x = 193,402,702,787,698.12/19,419,947.80
  6. Step 6: Final answer
    x = 9,958,971.30

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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.