Home / 15,189,847.77-20,962,120.63-8,663,807.65

Finding the Fourth Proportional to 15,189,847.77, 20,962,120.63 and 8,663,807.65

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Solution

The fourth proportional to 15,189,847.77, 20,962,120.63 and 8,663,807.65 is: 11,956,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,847.77 : 20,962,120.63 = 8,663,807.65 : x
  2. Step 2: Convert to fraction form
    15,189,847.77/20,962,120.63 = 8,663,807.65/x
  3. Step 3: Cross multiply
    15,189,847.77x = 20,962,120.63 × 8,663,807.65
  4. Step 4: Simplify right side
    15,189,847.77x = 181,611,781,031,097.78
  5. Step 5: Solve for x
    x = 181,611,781,031,097.78/15,189,847.77
  6. Step 6: Final answer
    x = 11,956,129.11

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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.