Home / 70,497,534.87-105,741,310.32-18,680,990.31

Finding the Fourth Proportional to 70,497,534.87, 105,741,310.32 and 18,680,990.31

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Solution

The fourth proportional to 70,497,534.87, 105,741,310.32 and 18,680,990.31 is: 28,020,162.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497,534.87 : 105,741,310.32 = 18,680,990.31 : x
  2. Step 2: Convert to fraction form
    70,497,534.87/105,741,310.32 = 18,680,990.31/x
  3. Step 3: Cross multiply
    70,497,534.87x = 105,741,310.32 × 18,680,990.31
  4. Step 4: Simplify right side
    70,497,534.87x = 1,975,352,393,454,622.75
  5. Step 5: Solve for x
    x = 1,975,352,393,454,622.75/70,497,534.87
  6. Step 6: Final answer
    x = 28,020,162.65

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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.