Home / 70,497,534.12-105,741,309.24-18,680,989.56

Finding the Fourth Proportional to 70,497,534.12, 105,741,309.24 and 18,680,989.56

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Solution

The fourth proportional to 70,497,534.12, 105,741,309.24 and 18,680,989.56 is: 28,020,161.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497,534.12 : 105,741,309.24 = 18,680,989.56 : x
  2. Step 2: Convert to fraction form
    70,497,534.12/105,741,309.24 = 18,680,989.56/x
  3. Step 3: Cross multiply
    70,497,534.12x = 105,741,309.24 × 18,680,989.56
  4. Step 4: Simplify right side
    70,497,534.12x = 1,975,352,293,973,171.25
  5. Step 5: Solve for x
    x = 1,975,352,293,973,171.25/70,497,534.12
  6. Step 6: Final answer
    x = 28,020,161.54

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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.