Home / 19,156,719.90-28,749,076.65-13,488,015.90

Finding the Fourth Proportional to 19,156,719.90, 28,749,076.65 and 13,488,015.90

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Solution

The fourth proportional to 19,156,719.90, 28,749,076.65 and 13,488,015.90 is: 20,241,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156,719.90 : 28,749,076.65 = 13,488,015.90 : x
  2. Step 2: Convert to fraction form
    19,156,719.90/28,749,076.65 = 13,488,015.90/x
  3. Step 3: Cross multiply
    19,156,719.90x = 28,749,076.65 × 13,488,015.90
  4. Step 4: Simplify right side
    19,156,719.90x = 387,768,002,965,518.75
  5. Step 5: Solve for x
    x = 387,768,002,965,518.75/19,156,719.90
  6. Step 6: Final answer
    x = 20,241,878.83

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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.