Home / 8,600,172.47-12,900,285.21-2,123,248.55

Finding the Fourth Proportional to 8,600,172.47, 12,900,285.21 and 2,123,248.55

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Solution

The fourth proportional to 8,600,172.47, 12,900,285.21 and 2,123,248.55 is: 3,184,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600,172.47 : 12,900,285.21 = 2,123,248.55 : x
  2. Step 2: Convert to fraction form
    8,600,172.47/12,900,285.21 = 2,123,248.55/x
  3. Step 3: Cross multiply
    8,600,172.47x = 12,900,285.21 × 2,123,248.55
  4. Step 4: Simplify right side
    8,600,172.47x = 27,390,511,810,179.70
  5. Step 5: Solve for x
    x = 27,390,511,810,179.70/8,600,172.47
  6. Step 6: Final answer
    x = 3,184,879.36

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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.