Home / 103,128,140.28-154,692,251.64-25,406,556.12

Finding the Fourth Proportional to 103,128,140.28, 154,692,251.64 and 25,406,556.12

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Solution

The fourth proportional to 103,128,140.28, 154,692,251.64 and 25,406,556.12 is: 38,109,844.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,128,140.28 : 154,692,251.64 = 25,406,556.12 : x
  2. Step 2: Convert to fraction form
    103,128,140.28/154,692,251.64 = 25,406,556.12/x
  3. Step 3: Cross multiply
    103,128,140.28x = 154,692,251.64 × 25,406,556.12
  4. Step 4: Simplify right side
    103,128,140.28x = 3,930,197,372,620,822
  5. Step 5: Solve for x
    x = 3,930,197,372,620,822/103,128,140.28
  6. Step 6: Final answer
    x = 38,109,844.33

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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.