Home / 279,531,648,556.80-419,297,472,835.20-90,877,179,436.80

Finding the Fourth Proportional to 279,531,648,556.80, 419,297,472,835.20 and 90,877,179,436.80

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Solution

The fourth proportional to 279,531,648,556.80, 419,297,472,835.20 and 90,877,179,436.80 is: 136,315,769,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,531,648,556.80 : 419,297,472,835.20 = 90,877,179,436.80 : x
  2. Step 2: Convert to fraction form
    279,531,648,556.80/419,297,472,835.20 = 90,877,179,436.80/x
  3. Step 3: Cross multiply
    279,531,648,556.80x = 419,297,472,835.20 × 90,877,179,436.80
  4. Step 4: Simplify right side
    279,531,648,556.80x = 38,104,571,676,241,248,124,928
  5. Step 5: Solve for x
    x = 38,104,571,676,241,248,124,928/279,531,648,556.80
  6. Step 6: Final answer
    x = 136,315,769,155.20

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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.