Home / 7,788,010.05-11,682,015.08-4,428,778.05

Finding the Fourth Proportional to 7,788,010.05, 11,682,015.08 and 4,428,778.05

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Solution

The fourth proportional to 7,788,010.05, 11,682,015.08 and 4,428,778.05 is: 6,643,167.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788,010.05 : 11,682,015.08 = 4,428,778.05 : x
  2. Step 2: Convert to fraction form
    7,788,010.05/11,682,015.08 = 4,428,778.05/x
  3. Step 3: Cross multiply
    7,788,010.05x = 11,682,015.08 × 4,428,778.05
  4. Step 4: Simplify right side
    7,788,010.05x = 51,737,051,943,929.10
  5. Step 5: Solve for x
    x = 51,737,051,943,929.10/7,788,010.05
  6. Step 6: Final answer
    x = 6,643,167.08

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Double scale
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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.