Home / 331,344,019.80-497,016,029.70-280,325,683.80

Finding the Fourth Proportional to 331,344,019.80, 497,016,029.70 and 280,325,683.80

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Solution

The fourth proportional to 331,344,019.80, 497,016,029.70 and 280,325,683.80 is: 420,488,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,344,019.80 : 497,016,029.70 = 280,325,683.80 : x
  2. Step 2: Convert to fraction form
    331,344,019.80/497,016,029.70 = 280,325,683.80/x
  3. Step 3: Cross multiply
    331,344,019.80x = 497,016,029.70 × 280,325,683.80
  4. Step 4: Simplify right side
    331,344,019.80x = 139,326,358,385,213,616
  5. Step 5: Solve for x
    x = 139,326,358,385,213,616/331,344,019.80
  6. Step 6: Final answer
    x = 420,488,525.70

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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.