Home / 209,416,443.85-313,716,010.42-163,141,639.11

Finding the Fourth Proportional to 209,416,443.85, 313,716,010.42 and 163,141,639.11

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Solution

The fourth proportional to 209,416,443.85, 313,716,010.42 and 163,141,639.11 is: 244,394,103.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,416,443.85 : 313,716,010.42 = 163,141,639.11 : x
  2. Step 2: Convert to fraction form
    209,416,443.85/313,716,010.42 = 163,141,639.11/x
  3. Step 3: Cross multiply
    209,416,443.85x = 313,716,010.42 × 163,141,639.11
  4. Step 4: Simplify right side
    209,416,443.85x = 51,180,144,154,254,088
  5. Step 5: Solve for x
    x = 51,180,144,154,254,088/209,416,443.85
  6. Step 6: Final answer
    x = 244,394,103.99

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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.