Home / 20,176,843.31-30,265,065.52-9,243,931.78

Finding the Fourth Proportional to 20,176,843.31, 30,265,065.52 and 9,243,931.78

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Solution

The fourth proportional to 20,176,843.31, 30,265,065.52 and 9,243,931.78 is: 13,865,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176,843.31 : 30,265,065.52 = 9,243,931.78 : x
  2. Step 2: Convert to fraction form
    20,176,843.31/30,265,065.52 = 9,243,931.78/x
  3. Step 3: Cross multiply
    20,176,843.31x = 30,265,065.52 × 9,243,931.78
  4. Step 4: Simplify right side
    20,176,843.31x = 279,768,201,083,952.19
  5. Step 5: Solve for x
    x = 279,768,201,083,952.19/20,176,843.31
  6. Step 6: Final answer
    x = 13,865,806.30

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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.