Home / 998,989,118.39-1,378,575,054.91-552,970,763.75

Finding the Fourth Proportional to 998,989,118.39, 1,378,575,054.91 and 552,970,763.75

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Solution

The fourth proportional to 998,989,118.39, 1,378,575,054.91 and 552,970,763.75 is: 763,083,087.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,989,118.39 : 1,378,575,054.91 = 552,970,763.75 : x
  2. Step 2: Convert to fraction form
    998,989,118.39/1,378,575,054.91 = 552,970,763.75/x
  3. Step 3: Cross multiply
    998,989,118.39x = 1,378,575,054.91 × 552,970,763.75
  4. Step 4: Simplify right side
    998,989,118.39x = 762,311,701,000,280,960
  5. Step 5: Solve for x
    x = 762,311,701,000,280,960/998,989,118.39
  6. Step 6: Final answer
    x = 763,083,087.66

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1.5x scale

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.