Home / 15,006,857.84-20,709,482.12-8,131,334.48

Finding the Fourth Proportional to 15,006,857.84, 20,709,482.12 and 8,131,334.48

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Solution

The fourth proportional to 15,006,857.84, 20,709,482.12 and 8,131,334.48 is: 11,221,251.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006,857.84 : 20,709,482.12 = 8,131,334.48 : x
  2. Step 2: Convert to fraction form
    15,006,857.84/20,709,482.12 = 8,131,334.48/x
  3. Step 3: Cross multiply
    15,006,857.84x = 20,709,482.12 × 8,131,334.48
  4. Step 4: Simplify right side
    15,006,857.84x = 168,395,726,025,299.50
  5. Step 5: Solve for x
    x = 168,395,726,025,299.50/15,006,857.84
  6. Step 6: Final answer
    x = 11,221,251.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.