Home / 7,819,899.57-11,719,056.51-5,643,566.73

Finding the Fourth Proportional to 7,819,899.57, 11,719,056.51 and 5,643,566.73

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Solution

The fourth proportional to 7,819,899.57, 11,719,056.51 and 5,643,566.73 is: 8,457,560.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819,899.57 : 11,719,056.51 = 5,643,566.73 : x
  2. Step 2: Convert to fraction form
    7,819,899.57/11,719,056.51 = 5,643,566.73/x
  3. Step 3: Cross multiply
    7,819,899.57x = 11,719,056.51 × 5,643,566.73
  4. Step 4: Simplify right side
    7,819,899.57x = 66,137,277,426,825.91
  5. Step 5: Solve for x
    x = 66,137,277,426,825.91/7,819,899.57
  6. Step 6: Final answer
    x = 8,457,560.97

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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.