Home / 12,158,073.46-18,243,395.93-5,339,438.65

Finding the Fourth Proportional to 12,158,073.46, 18,243,395.93 and 5,339,438.65

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Solution

The fourth proportional to 12,158,073.46, 18,243,395.93 and 5,339,438.65 is: 8,011,918.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158,073.46 : 18,243,395.93 = 5,339,438.65 : x
  2. Step 2: Convert to fraction form
    12,158,073.46/18,243,395.93 = 5,339,438.65/x
  3. Step 3: Cross multiply
    12,158,073.46x = 18,243,395.93 × 5,339,438.65
  4. Step 4: Simplify right side
    12,158,073.46x = 97,409,493,335,894.70
  5. Step 5: Solve for x
    x = 97,409,493,335,894.70/12,158,073.46
  6. Step 6: Final answer
    x = 8,011,918.47

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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.