Home / 787,395,998.80-1,181,093,998.20-328,230,974.80

Finding the Fourth Proportional to 787,395,998.80, 1,181,093,998.20 and 328,230,974.80

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Solution

The fourth proportional to 787,395,998.80, 1,181,093,998.20 and 328,230,974.80 is: 492,346,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,395,998.80 : 1,181,093,998.20 = 328,230,974.80 : x
  2. Step 2: Convert to fraction form
    787,395,998.80/1,181,093,998.20 = 328,230,974.80/x
  3. Step 3: Cross multiply
    787,395,998.80x = 1,181,093,998.20 × 328,230,974.80
  4. Step 4: Simplify right side
    787,395,998.80x = 387,671,634,359,615,488
  5. Step 5: Solve for x
    x = 387,671,634,359,615,488/787,395,998.80
  6. Step 6: Final answer
    x = 492,346,462.20

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1.5x scale

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.