Home / 19,307,870.30-28,961,805.45-10,206,451.10

Finding the Fourth Proportional to 19,307,870.30, 28,961,805.45 and 10,206,451.10

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Solution

The fourth proportional to 19,307,870.30, 28,961,805.45 and 10,206,451.10 is: 15,309,676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307,870.30 : 28,961,805.45 = 10,206,451.10 : x
  2. Step 2: Convert to fraction form
    19,307,870.30/28,961,805.45 = 10,206,451.10/x
  3. Step 3: Cross multiply
    19,307,870.30x = 28,961,805.45 × 10,206,451.10
  4. Step 4: Simplify right side
    19,307,870.30x = 295,597,251,093,138.50
  5. Step 5: Solve for x
    x = 295,597,251,093,138.50/19,307,870.30
  6. Step 6: Final answer
    x = 15,309,676.65

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Double scale
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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.