Home / 12,447,442.80-18,671,164.20-2,991,826.80

Finding the Fourth Proportional to 12,447,442.80, 18,671,164.20 and 2,991,826.80

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Solution

The fourth proportional to 12,447,442.80, 18,671,164.20 and 2,991,826.80 is: 4,487,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447,442.80 : 18,671,164.20 = 2,991,826.80 : x
  2. Step 2: Convert to fraction form
    12,447,442.80/18,671,164.20 = 2,991,826.80/x
  3. Step 3: Cross multiply
    12,447,442.80x = 18,671,164.20 × 2,991,826.80
  4. Step 4: Simplify right side
    12,447,442.80x = 55,860,889,440,760.55
  5. Step 5: Solve for x
    x = 55,860,889,440,760.55/12,447,442.80
  6. Step 6: Final answer
    x = 4,487,740.20

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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.