Home / 7,821,209.80-11,731,814.70-6,875,648.20

Finding the Fourth Proportional to 7,821,209.80, 11,731,814.70 and 6,875,648.20

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Solution

The fourth proportional to 7,821,209.80, 11,731,814.70 and 6,875,648.20 is: 10,313,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821,209.80 : 11,731,814.70 = 6,875,648.20 : x
  2. Step 2: Convert to fraction form
    7,821,209.80/11,731,814.70 = 6,875,648.20/x
  3. Step 3: Cross multiply
    7,821,209.80x = 11,731,814.70 × 6,875,648.20
  4. Step 4: Simplify right side
    7,821,209.80x = 80,663,830,624,788.53
  5. Step 5: Solve for x
    x = 80,663,830,624,788.53/7,821,209.80
  6. Step 6: Final answer
    x = 10,313,472.30

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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.