Home / 199,329,821.40-298,994,732.10-130,455,067.80

Finding the Fourth Proportional to 199,329,821.40, 298,994,732.10 and 130,455,067.80

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Solution

The fourth proportional to 199,329,821.40, 298,994,732.10 and 130,455,067.80 is: 195,682,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,329,821.40 : 298,994,732.10 = 130,455,067.80 : x
  2. Step 2: Convert to fraction form
    199,329,821.40/298,994,732.10 = 130,455,067.80/x
  3. Step 3: Cross multiply
    199,329,821.40x = 298,994,732.10 × 130,455,067.80
  4. Step 4: Simplify right side
    199,329,821.40x = 39,005,378,047,948,336
  5. Step 5: Solve for x
    x = 39,005,378,047,948,336/199,329,821.40
  6. Step 6: Final answer
    x = 195,682,601.70

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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.