Home / 12,209,345.82-18,314,409.69-6,140,765.34

Finding the Fourth Proportional to 12,209,345.82, 18,314,409.69 and 6,140,765.34

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Solution

The fourth proportional to 12,209,345.82, 18,314,409.69 and 6,140,765.34 is: 9,211,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209,345.82 : 18,314,409.69 = 6,140,765.34 : x
  2. Step 2: Convert to fraction form
    12,209,345.82/18,314,409.69 = 6,140,765.34/x
  3. Step 3: Cross multiply
    12,209,345.82x = 18,314,409.69 × 6,140,765.34
  4. Step 4: Simplify right side
    12,209,345.82x = 112,464,492,246,912.16
  5. Step 5: Solve for x
    x = 112,464,492,246,912.16/12,209,345.82
  6. Step 6: Final answer
    x = 9,211,344.65

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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.