Home / 34,120,154.70-51,180,232.05-21,206,138.40

Finding the Fourth Proportional to 34,120,154.70, 51,180,232.05 and 21,206,138.40

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Solution

The fourth proportional to 34,120,154.70, 51,180,232.05 and 21,206,138.40 is: 31,809,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,120,154.70 : 51,180,232.05 = 21,206,138.40 : x
  2. Step 2: Convert to fraction form
    34,120,154.70/51,180,232.05 = 21,206,138.40/x
  3. Step 3: Cross multiply
    34,120,154.70x = 51,180,232.05 × 21,206,138.40
  4. Step 4: Simplify right side
    34,120,154.70x = 1,085,335,084,196,415.62
  5. Step 5: Solve for x
    x = 1,085,335,084,196,415.62/34,120,154.70
  6. Step 6: Final answer
    x = 31,809,207.60

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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.