Home / 726,978,045.20-1,090,467,067.80-436,740,400.40

Finding the Fourth Proportional to 726,978,045.20, 1,090,467,067.80 and 436,740,400.40

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Solution

The fourth proportional to 726,978,045.20, 1,090,467,067.80 and 436,740,400.40 is: 655,110,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,978,045.20 : 1,090,467,067.80 = 436,740,400.40 : x
  2. Step 2: Convert to fraction form
    726,978,045.20/1,090,467,067.80 = 436,740,400.40/x
  3. Step 3: Cross multiply
    726,978,045.20x = 1,090,467,067.80 × 436,740,400.40
  4. Step 4: Simplify right side
    726,978,045.20x = 476,251,023,813,985,920
  5. Step 5: Solve for x
    x = 476,251,023,813,985,920/726,978,045.20
  6. Step 6: Final answer
    x = 655,110,600.60

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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.