Home / 998,989,117.39-1,378,575,053.53-552,970,762.75

Finding the Fourth Proportional to 998,989,117.39, 1,378,575,053.53 and 552,970,762.75

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Solution

The fourth proportional to 998,989,117.39, 1,378,575,053.53 and 552,970,762.75 is: 763,083,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,989,117.39 : 1,378,575,053.53 = 552,970,762.75 : x
  2. Step 2: Convert to fraction form
    998,989,117.39/1,378,575,053.53 = 552,970,762.75/x
  3. Step 3: Cross multiply
    998,989,117.39x = 1,378,575,053.53 × 552,970,762.75
  4. Step 4: Simplify right side
    998,989,117.39x = 762,311,698,858,606,208
  5. Step 5: Solve for x
    x = 762,311,698,858,606,208/998,989,117.39
  6. Step 6: Final answer
    x = 763,083,086.28

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Double scale
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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.