Home / 12,207,983.70-18,314,891.55-3,688,403.70

Finding the Fourth Proportional to 12,207,983.70, 18,314,891.55 and 3,688,403.70

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Solution

The fourth proportional to 12,207,983.70, 18,314,891.55 and 3,688,403.70 is: 5,533,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207,983.70 : 18,314,891.55 = 3,688,403.70 : x
  2. Step 2: Convert to fraction form
    12,207,983.70/18,314,891.55 = 3,688,403.70/x
  3. Step 3: Cross multiply
    12,207,983.70x = 18,314,891.55 × 3,688,403.70
  4. Step 4: Simplify right side
    12,207,983.70x = 67,552,713,758,118.74
  5. Step 5: Solve for x
    x = 67,552,713,758,118.74/12,207,983.70
  6. Step 6: Final answer
    x = 5,533,486.56

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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.