Home / 20,729,284.96-30,881,180.36-19,796,610.40

Finding the Fourth Proportional to 20,729,284.96, 30,881,180.36 and 19,796,610.40

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Solution

The fourth proportional to 20,729,284.96, 30,881,180.36 and 19,796,610.40 is: 29,491,740.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729,284.96 : 30,881,180.36 = 19,796,610.40 : x
  2. Step 2: Convert to fraction form
    20,729,284.96/30,881,180.36 = 19,796,610.40/x
  3. Step 3: Cross multiply
    20,729,284.96x = 30,881,180.36 × 19,796,610.40
  4. Step 4: Simplify right side
    20,729,284.96x = 611,342,696,279,051.62
  5. Step 5: Solve for x
    x = 611,342,696,279,051.62/20,729,284.96
  6. Step 6: Final answer
    x = 29,491,740.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.