Home / 12,208,112.70-18,315,085.05-3,688,532.70

Finding the Fourth Proportional to 12,208,112.70, 18,315,085.05 and 3,688,532.70

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Solution

The fourth proportional to 12,208,112.70, 18,315,085.05 and 3,688,532.70 is: 5,533,680.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208,112.70 : 18,315,085.05 = 3,688,532.70 : x
  2. Step 2: Convert to fraction form
    12,208,112.70/18,315,085.05 = 3,688,532.70/x
  3. Step 3: Cross multiply
    12,208,112.70x = 18,315,085.05 × 3,688,532.70
  4. Step 4: Simplify right side
    12,208,112.70x = 67,555,790,110,206.14
  5. Step 5: Solve for x
    x = 67,555,790,110,206.14/12,208,112.70
  6. Step 6: Final answer
    x = 5,533,680.08

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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.