Home / 819,033,163.20-1,228,549,744.80-359,868,139.20

Finding the Fourth Proportional to 819,033,163.20, 1,228,549,744.80 and 359,868,139.20

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Solution

The fourth proportional to 819,033,163.20, 1,228,549,744.80 and 359,868,139.20 is: 539,802,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,033,163.20 : 1,228,549,744.80 = 359,868,139.20 : x
  2. Step 2: Convert to fraction form
    819,033,163.20/1,228,549,744.80 = 359,868,139.20/x
  3. Step 3: Cross multiply
    819,033,163.20x = 1,228,549,744.80 × 359,868,139.20
  4. Step 4: Simplify right side
    819,033,163.20x = 442,115,910,575,810,816
  5. Step 5: Solve for x
    x = 442,115,910,575,810,816/819,033,163.20
  6. Step 6: Final answer
    x = 539,802,208.80

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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.