Home / 7,142,294.10-9,856,437-3,879,172.56

Finding the Fourth Proportional to 7,142,294.10, 9,856,437 and 3,879,172.56

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Solution

The fourth proportional to 7,142,294.10, 9,856,437 and 3,879,172.56 is: 5,353,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,294.10 : 9,856,437 = 3,879,172.56 : x
  2. Step 2: Convert to fraction form
    7,142,294.10/9,856,437 = 3,879,172.56/x
  3. Step 3: Cross multiply
    7,142,294.10x = 9,856,437 × 3,879,172.56
  4. Step 4: Simplify right side
    7,142,294.10x = 38,234,819,949,768.72
  5. Step 5: Solve for x
    x = 38,234,819,949,768.72/7,142,294.10
  6. Step 6: Final answer
    x = 5,353,296.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.