Home / 498,404,811.80-687,831,035.10-275,386,520.36

Finding the Fourth Proportional to 498,404,811.80, 687,831,035.10 and 275,386,520.36

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Solution

The fourth proportional to 498,404,811.80, 687,831,035.10 and 275,386,520.36 is: 380,051,297.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,404,811.80 : 687,831,035.10 = 275,386,520.36 : x
  2. Step 2: Convert to fraction form
    498,404,811.80/687,831,035.10 = 275,386,520.36/x
  3. Step 3: Cross multiply
    498,404,811.80x = 687,831,035.10 × 275,386,520.36
  4. Step 4: Simplify right side
    498,404,811.80x = 189,419,395,351,806,048
  5. Step 5: Solve for x
    x = 189,419,395,351,806,048/498,404,811.80
  6. Step 6: Final answer
    x = 380,051,297.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.