Home / 21,790,519.58-30,072,275.99-12,000,961.20

Finding the Fourth Proportional to 21,790,519.58, 30,072,275.99 and 12,000,961.20

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Solution

The fourth proportional to 21,790,519.58, 30,072,275.99 and 12,000,961.20 is: 16,562,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790,519.58 : 30,072,275.99 = 12,000,961.20 : x
  2. Step 2: Convert to fraction form
    21,790,519.58/30,072,275.99 = 12,000,961.20/x
  3. Step 3: Cross multiply
    21,790,519.58x = 30,072,275.99 × 12,000,961.20
  4. Step 4: Simplify right side
    21,790,519.58x = 360,896,217,291,676.75
  5. Step 5: Solve for x
    x = 360,896,217,291,676.75/21,790,519.58
  6. Step 6: Final answer
    x = 16,562,074.90

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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.