Home / 526,538,421.20-789,807,631.80-254,440,629.20

Finding the Fourth Proportional to 526,538,421.20, 789,807,631.80 and 254,440,629.20

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Solution

The fourth proportional to 526,538,421.20, 789,807,631.80 and 254,440,629.20 is: 381,660,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,538,421.20 : 789,807,631.80 = 254,440,629.20 : x
  2. Step 2: Convert to fraction form
    526,538,421.20/789,807,631.80 = 254,440,629.20/x
  3. Step 3: Cross multiply
    526,538,421.20x = 789,807,631.80 × 254,440,629.20
  4. Step 4: Simplify right side
    526,538,421.20x = 200,959,150,782,153,920
  5. Step 5: Solve for x
    x = 200,959,150,782,153,920/526,538,421.20
  6. Step 6: Final answer
    x = 381,660,943.80

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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.