Home / 20,847,784.08-31,275,604.56-7,897,813.50

Finding the Fourth Proportional to 20,847,784.08, 31,275,604.56 and 7,897,813.50

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Solution

The fourth proportional to 20,847,784.08, 31,275,604.56 and 7,897,813.50 is: 11,848,208.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847,784.08 : 31,275,604.56 = 7,897,813.50 : x
  2. Step 2: Convert to fraction form
    20,847,784.08/31,275,604.56 = 7,897,813.50/x
  3. Step 3: Cross multiply
    20,847,784.08x = 31,275,604.56 × 7,897,813.50
  4. Step 4: Simplify right side
    20,847,784.08x = 247,008,891,914,629.56
  5. Step 5: Solve for x
    x = 247,008,891,914,629.56/20,847,784.08
  6. Step 6: Final answer
    x = 11,848,208.47

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1.5x scale

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.