Home / 30,609,344.40-45,914,016.60-21,054,195.60

Finding the Fourth Proportional to 30,609,344.40, 45,914,016.60 and 21,054,195.60

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Solution

The fourth proportional to 30,609,344.40, 45,914,016.60 and 21,054,195.60 is: 31,581,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,609,344.40 : 45,914,016.60 = 21,054,195.60 : x
  2. Step 2: Convert to fraction form
    30,609,344.40/45,914,016.60 = 21,054,195.60/x
  3. Step 3: Cross multiply
    30,609,344.40x = 45,914,016.60 × 21,054,195.60
  4. Step 4: Simplify right side
    30,609,344.40x = 966,682,686,278,047
  5. Step 5: Solve for x
    x = 966,682,686,278,047/30,609,344.40
  6. Step 6: Final answer
    x = 31,581,293.40

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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.