Home / 12,212,235.42-18,318,416.31-7,160,002.98

Finding the Fourth Proportional to 12,212,235.42, 18,318,416.31 and 7,160,002.98

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Solution

The fourth proportional to 12,212,235.42, 18,318,416.31 and 7,160,002.98 is: 10,740,041.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212,235.42 : 18,318,416.31 = 7,160,002.98 : x
  2. Step 2: Convert to fraction form
    12,212,235.42/18,318,416.31 = 7,160,002.98/x
  3. Step 3: Cross multiply
    12,212,235.42x = 18,318,416.31 × 7,160,002.98
  4. Step 4: Simplify right side
    12,212,235.42x = 131,159,915,368,480.61
  5. Step 5: Solve for x
    x = 131,159,915,368,480.61/12,212,235.42
  6. Step 6: Final answer
    x = 10,740,041.51

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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.