Home / 20,072,154.20-30,243,166.82-18,155,202.56

Finding the Fourth Proportional to 20,072,154.20, 30,243,166.82 and 18,155,202.56

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Solution

The fourth proportional to 20,072,154.20, 30,243,166.82 and 18,155,202.56 is: 27,354,852.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072,154.20 : 30,243,166.82 = 18,155,202.56 : x
  2. Step 2: Convert to fraction form
    20,072,154.20/30,243,166.82 = 18,155,202.56/x
  3. Step 3: Cross multiply
    20,072,154.20x = 30,243,166.82 × 18,155,202.56
  4. Step 4: Simplify right side
    20,072,154.20x = 549,070,819,672,971
  5. Step 5: Solve for x
    x = 549,070,819,672,971/20,072,154.20
  6. Step 6: Final answer
    x = 27,354,852.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.