Home / 20,291,235.39-28,001,154.38-10,998,605.94

Finding the Fourth Proportional to 20,291,235.39, 28,001,154.38 and 10,998,605.94

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Solution

The fourth proportional to 20,291,235.39, 28,001,154.38 and 10,998,605.94 is: 15,177,669.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291,235.39 : 28,001,154.38 = 10,998,605.94 : x
  2. Step 2: Convert to fraction form
    20,291,235.39/28,001,154.38 = 10,998,605.94/x
  3. Step 3: Cross multiply
    20,291,235.39x = 28,001,154.38 × 10,998,605.94
  4. Step 4: Simplify right side
    20,291,235.39x = 307,973,662,730,727.62
  5. Step 5: Solve for x
    x = 307,973,662,730,727.62/20,291,235.39
  6. Step 6: Final answer
    x = 15,177,669.41

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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.