Home / 20,289,270.22-30,434,348.40-12,209,005.06

Finding the Fourth Proportional to 20,289,270.22, 30,434,348.40 and 12,209,005.06

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Solution

The fourth proportional to 20,289,270.22, 30,434,348.40 and 12,209,005.06 is: 18,313,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,270.22 : 30,434,348.40 = 12,209,005.06 : x
  2. Step 2: Convert to fraction form
    20,289,270.22/30,434,348.40 = 12,209,005.06/x
  3. Step 3: Cross multiply
    20,289,270.22x = 30,434,348.40 × 12,209,005.06
  4. Step 4: Simplify right side
    20,289,270.22x = 371,573,113,491,533.25
  5. Step 5: Solve for x
    x = 371,573,113,491,533.25/20,289,270.22
  6. Step 6: Final answer
    x = 18,313,774.20

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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.