Home / 20,698,763.91-28,564,483.12-11,406,667.39

Finding the Fourth Proportional to 20,698,763.91, 28,564,483.12 and 11,406,667.39

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Solution

The fourth proportional to 20,698,763.91, 28,564,483.12 and 11,406,667.39 is: 15,741,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,763.91 : 28,564,483.12 = 11,406,667.39 : x
  2. Step 2: Convert to fraction form
    20,698,763.91/28,564,483.12 = 11,406,667.39/x
  3. Step 3: Cross multiply
    20,698,763.91x = 28,564,483.12 × 11,406,667.39
  4. Step 4: Simplify right side
    20,698,763.91x = 325,825,557,960,942.88
  5. Step 5: Solve for x
    x = 325,825,557,960,942.88/20,698,763.91
  6. Step 6: Final answer
    x = 15,741,305.10

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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.