Home / 20,386,740.96-28,133,137.08-11,567,797.92

Finding the Fourth Proportional to 20,386,740.96, 28,133,137.08 and 11,567,797.92

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Solution

The fourth proportional to 20,386,740.96, 28,133,137.08 and 11,567,797.92 is: 15,963,240.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,740.96 : 28,133,137.08 = 11,567,797.92 : x
  2. Step 2: Convert to fraction form
    20,386,740.96/28,133,137.08 = 11,567,797.92/x
  3. Step 3: Cross multiply
    20,386,740.96x = 28,133,137.08 × 11,567,797.92
  4. Step 4: Simplify right side
    20,386,740.96x = 325,438,444,597,098.88
  5. Step 5: Solve for x
    x = 325,438,444,597,098.88/20,386,740.96
  6. Step 6: Final answer
    x = 15,963,240.29

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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.