Home / 30,981,423.51-42,753,504.51-16,852,142.34

Finding the Fourth Proportional to 30,981,423.51, 42,753,504.51 and 16,852,142.34

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Solution

The fourth proportional to 30,981,423.51, 42,753,504.51 and 16,852,142.34 is: 23,255,488.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981,423.51 : 42,753,504.51 = 16,852,142.34 : x
  2. Step 2: Convert to fraction form
    30,981,423.51/42,753,504.51 = 16,852,142.34/x
  3. Step 3: Cross multiply
    30,981,423.51x = 42,753,504.51 × 16,852,142.34
  4. Step 4: Simplify right side
    30,981,423.51x = 720,488,143,536,351.88
  5. Step 5: Solve for x
    x = 720,488,143,536,351.88/30,981,423.51
  6. Step 6: Final answer
    x = 23,255,488.67

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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.