Home / 5,120,374.14-7,680,533.43-2,087,728.20

Finding the Fourth Proportional to 5,120,374.14, 7,680,533.43 and 2,087,728.20

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Solution

The fourth proportional to 5,120,374.14, 7,680,533.43 and 2,087,728.20 is: 3,131,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,374.14 : 7,680,533.43 = 2,087,728.20 : x
  2. Step 2: Convert to fraction form
    5,120,374.14/7,680,533.43 = 2,087,728.20/x
  3. Step 3: Cross multiply
    5,120,374.14x = 7,680,533.43 × 2,087,728.20
  4. Step 4: Simplify right side
    5,120,374.14x = 16,034,866,232,853.72
  5. Step 5: Solve for x
    x = 16,034,866,232,853.72/5,120,374.14
  6. Step 6: Final answer
    x = 3,131,580.97

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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.