Home / 998,839,173.14-1,378,387,906.53-552,803,403.86

Finding the Fourth Proportional to 998,839,173.14, 1,378,387,906.53 and 552,803,403.86

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Solution

The fourth proportional to 998,839,173.14, 1,378,387,906.53 and 552,803,403.86 is: 762,863,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,839,173.14 : 1,378,387,906.53 = 552,803,403.86 : x
  2. Step 2: Convert to fraction form
    998,839,173.14/1,378,387,906.53 = 552,803,403.86/x
  3. Step 3: Cross multiply
    998,839,173.14x = 1,378,387,906.53 × 552,803,403.86
  4. Step 4: Simplify right side
    998,839,173.14x = 761,977,526,569,243,520
  5. Step 5: Solve for x
    x = 761,977,526,569,243,520/998,839,173.14
  6. Step 6: Final answer
    x = 762,863,078.52

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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.