Home / 12,339,551.70-18,509,327.55-7,288,262.10

Finding the Fourth Proportional to 12,339,551.70, 18,509,327.55 and 7,288,262.10

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Solution

The fourth proportional to 12,339,551.70, 18,509,327.55 and 7,288,262.10 is: 10,932,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339,551.70 : 18,509,327.55 = 7,288,262.10 : x
  2. Step 2: Convert to fraction form
    12,339,551.70/18,509,327.55 = 7,288,262.10/x
  3. Step 3: Cross multiply
    12,339,551.70x = 18,509,327.55 × 7,288,262.10
  4. Step 4: Simplify right side
    12,339,551.70x = 134,900,830,479,150.86
  5. Step 5: Solve for x
    x = 134,900,830,479,150.86/12,339,551.70
  6. Step 6: Final answer
    x = 10,932,393.15

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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.