Home / 43,508,713.20-65,263,069.80-13,212,639.60

Finding the Fourth Proportional to 43,508,713.20, 65,263,069.80 and 13,212,639.60

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Solution

The fourth proportional to 43,508,713.20, 65,263,069.80 and 13,212,639.60 is: 19,818,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,508,713.20 : 65,263,069.80 = 13,212,639.60 : x
  2. Step 2: Convert to fraction form
    43,508,713.20/65,263,069.80 = 13,212,639.60/x
  3. Step 3: Cross multiply
    43,508,713.20x = 65,263,069.80 × 13,212,639.60
  4. Step 4: Simplify right side
    43,508,713.20x = 862,297,420,457,044
  5. Step 5: Solve for x
    x = 862,297,420,457,044/43,508,713.20
  6. Step 6: Final answer
    x = 19,818,959.40

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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.