Home / 18,209,206.20-27,313,809.30-12,469,643.40

Finding the Fourth Proportional to 18,209,206.20, 27,313,809.30 and 12,469,643.40

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Solution

The fourth proportional to 18,209,206.20, 27,313,809.30 and 12,469,643.40 is: 18,704,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209,206.20 : 27,313,809.30 = 12,469,643.40 : x
  2. Step 2: Convert to fraction form
    18,209,206.20/27,313,809.30 = 12,469,643.40/x
  3. Step 3: Cross multiply
    18,209,206.20x = 27,313,809.30 × 12,469,643.40
  4. Step 4: Simplify right side
    18,209,206.20x = 340,593,461,866,603.62
  5. Step 5: Solve for x
    x = 340,593,461,866,603.62/18,209,206.20
  6. Step 6: Final answer
    x = 18,704,465.10

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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.