Home / 210,015,605.80-314,928,930.30-80,580,197.80

Finding the Fourth Proportional to 210,015,605.80, 314,928,930.30 and 80,580,197.80

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Solution

The fourth proportional to 210,015,605.80, 314,928,930.30 and 80,580,197.80 is: 120,834,046.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,605.80 : 314,928,930.30 = 80,580,197.80 : x
  2. Step 2: Convert to fraction form
    210,015,605.80/314,928,930.30 = 80,580,197.80/x
  3. Step 3: Cross multiply
    210,015,605.80x = 314,928,930.30 × 80,580,197.80
  4. Step 4: Simplify right side
    210,015,605.80x = 25,377,035,496,516,412
  5. Step 5: Solve for x
    x = 25,377,035,496,516,412/210,015,605.80
  6. Step 6: Final answer
    x = 120,834,046.59

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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.