Home / 990,768,067.60-1,486,152,101.40-664,250,717.20

Finding the Fourth Proportional to 990,768,067.60, 1,486,152,101.40 and 664,250,717.20

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Solution

The fourth proportional to 990,768,067.60, 1,486,152,101.40 and 664,250,717.20 is: 996,376,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,768,067.60 : 1,486,152,101.40 = 664,250,717.20 : x
  2. Step 2: Convert to fraction form
    990,768,067.60/1,486,152,101.40 = 664,250,717.20/x
  3. Step 3: Cross multiply
    990,768,067.60x = 1,486,152,101.40 × 664,250,717.20
  4. Step 4: Simplify right side
    990,768,067.60x = 987,177,599,223,237,248
  5. Step 5: Solve for x
    x = 987,177,599,223,237,248/990,768,067.60
  6. Step 6: Final answer
    x = 996,376,075.80

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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.