Home / 20,196,205.20-30,313,334.70-10,618,457.40

Finding the Fourth Proportional to 20,196,205.20, 30,313,334.70 and 10,618,457.40

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Solution

The fourth proportional to 20,196,205.20, 30,313,334.70 and 10,618,457.40 is: 15,937,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196,205.20 : 30,313,334.70 = 10,618,457.40 : x
  2. Step 2: Convert to fraction form
    20,196,205.20/30,313,334.70 = 10,618,457.40/x
  3. Step 3: Cross multiply
    20,196,205.20x = 30,313,334.70 × 10,618,457.40
  4. Step 4: Simplify right side
    20,196,205.20x = 321,880,853,163,891.81
  5. Step 5: Solve for x
    x = 321,880,853,163,891.81/20,196,205.20
  6. Step 6: Final answer
    x = 15,937,689.78

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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.