Home / 12,620,436.12-18,923,087.16-6,130,731.90

Finding the Fourth Proportional to 12,620,436.12, 18,923,087.16 and 6,130,731.90

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Solution

The fourth proportional to 12,620,436.12, 18,923,087.16 and 6,130,731.90 is: 9,192,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620,436.12 : 18,923,087.16 = 6,130,731.90 : x
  2. Step 2: Convert to fraction form
    12,620,436.12/18,923,087.16 = 6,130,731.90/x
  3. Step 3: Cross multiply
    12,620,436.12x = 18,923,087.16 × 6,130,731.90
  4. Step 4: Simplify right side
    12,620,436.12x = 116,012,374,098,292.41
  5. Step 5: Solve for x
    x = 116,012,374,098,292.41/12,620,436.12
  6. Step 6: Final answer
    x = 9,192,421.96

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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.