Home / 30,940,265.79-42,695,067.20-17,888,365.82

Finding the Fourth Proportional to 30,940,265.79, 42,695,067.20 and 17,888,365.82

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Solution

The fourth proportional to 30,940,265.79, 42,695,067.20 and 17,888,365.82 is: 24,684,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940,265.79 : 42,695,067.20 = 17,888,365.82 : x
  2. Step 2: Convert to fraction form
    30,940,265.79/42,695,067.20 = 17,888,365.82/x
  3. Step 3: Cross multiply
    30,940,265.79x = 42,695,067.20 × 17,888,365.82
  4. Step 4: Simplify right side
    30,940,265.79x = 763,744,980,800,379
  5. Step 5: Solve for x
    x = 763,744,980,800,379/30,940,265.79
  6. Step 6: Final answer
    x = 24,684,499.67

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1.5x scale

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.