Home / 879,073,028.40-1,318,609,542.60-265,751,914.80

Finding the Fourth Proportional to 879,073,028.40, 1,318,609,542.60 and 265,751,914.80

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Solution

The fourth proportional to 879,073,028.40, 1,318,609,542.60 and 265,751,914.80 is: 398,627,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,073,028.40 : 1,318,609,542.60 = 265,751,914.80 : x
  2. Step 2: Convert to fraction form
    879,073,028.40/1,318,609,542.60 = 265,751,914.80/x
  3. Step 3: Cross multiply
    879,073,028.40x = 1,318,609,542.60 × 265,751,914.80
  4. Step 4: Simplify right side
    879,073,028.40x = 350,423,010,819,502,144
  5. Step 5: Solve for x
    x = 350,423,010,819,502,144/879,073,028.40
  6. Step 6: Final answer
    x = 398,627,872.20

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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.