Home / 28,700,199.18-39,596,338.89-18,392,605.74

Finding the Fourth Proportional to 28,700,199.18, 39,596,338.89 and 18,392,605.74

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Solution

The fourth proportional to 28,700,199.18, 39,596,338.89 and 18,392,605.74 is: 25,375,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700,199.18 : 39,596,338.89 = 18,392,605.74 : x
  2. Step 2: Convert to fraction form
    28,700,199.18/39,596,338.89 = 18,392,605.74/x
  3. Step 3: Cross multiply
    28,700,199.18x = 39,596,338.89 × 18,392,605.74
  4. Step 4: Simplify right side
    28,700,199.18x = 728,279,849,951,199.12
  5. Step 5: Solve for x
    x = 728,279,849,951,199.12/28,700,199.18
  6. Step 6: Final answer
    x = 25,375,428.42

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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.