Home / 20,709,515.60-31,073,604.60-9,922,648.40

Finding the Fourth Proportional to 20,709,515.60, 31,073,604.60 and 9,922,648.40

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Solution

The fourth proportional to 20,709,515.60, 31,073,604.60 and 9,922,648.40 is: 14,888,443.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,709,515.60 : 31,073,604.60 = 9,922,648.40 : x
  2. Step 2: Convert to fraction form
    20,709,515.60/31,073,604.60 = 9,922,648.40/x
  3. Step 3: Cross multiply
    20,709,515.60x = 31,073,604.60 × 9,922,648.40
  4. Step 4: Simplify right side
    20,709,515.60x = 308,332,452,966,422.69
  5. Step 5: Solve for x
    x = 308,332,452,966,422.69/20,709,515.60
  6. Step 6: Final answer
    x = 14,888,443.50

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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.