Home / 20,612,613.63-28,456,450.34-15,892,700.45

Finding the Fourth Proportional to 20,612,613.63, 28,456,450.34 and 15,892,700.45

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Solution

The fourth proportional to 20,612,613.63, 28,456,450.34 and 15,892,700.45 is: 21,940,441.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,613.63 : 28,456,450.34 = 15,892,700.45 : x
  2. Step 2: Convert to fraction form
    20,612,613.63/28,456,450.34 = 15,892,700.45/x
  3. Step 3: Cross multiply
    20,612,613.63x = 28,456,450.34 × 15,892,700.45
  4. Step 4: Simplify right side
    20,612,613.63x = 452,249,841,123,920.62
  5. Step 5: Solve for x
    x = 452,249,841,123,920.62/20,612,613.63
  6. Step 6: Final answer
    x = 21,940,441.38

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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.