Home / 10,788,281.78-16,188,807-3,969,643.16

Finding the Fourth Proportional to 10,788,281.78, 16,188,807 and 3,969,643.16

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Solution

The fourth proportional to 10,788,281.78, 16,188,807 and 3,969,643.16 is: 5,956,813.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788,281.78 : 16,188,807 = 3,969,643.16 : x
  2. Step 2: Convert to fraction form
    10,788,281.78/16,188,807 = 3,969,643.16/x
  3. Step 3: Cross multiply
    10,788,281.78x = 16,188,807 × 3,969,643.16
  4. Step 4: Simplify right side
    10,788,281.78x = 64,263,786,895,166.08
  5. Step 5: Solve for x
    x = 64,263,786,895,166.08/10,788,281.78
  6. Step 6: Final answer
    x = 5,956,813.91

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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.