Home / 726,978,049.20-1,090,467,073.80-436,740,404.40

Finding the Fourth Proportional to 726,978,049.20, 1,090,467,073.80 and 436,740,404.40

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Solution

The fourth proportional to 726,978,049.20, 1,090,467,073.80 and 436,740,404.40 is: 655,110,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,978,049.20 : 1,090,467,073.80 = 436,740,404.40 : x
  2. Step 2: Convert to fraction form
    726,978,049.20/1,090,467,073.80 = 436,740,404.40/x
  3. Step 3: Cross multiply
    726,978,049.20x = 1,090,467,073.80 × 436,740,404.40
  4. Step 4: Simplify right side
    726,978,049.20x = 476,251,030,796,296,576
  5. Step 5: Solve for x
    x = 476,251,030,796,296,576/726,978,049.20
  6. Step 6: Final answer
    x = 655,110,606.60

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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.