Home / 990,845,684.11-1,486,848,087.49-369,490,181.32

Finding the Fourth Proportional to 990,845,684.11, 1,486,848,087.49 and 369,490,181.32

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Solution

The fourth proportional to 990,845,684.11, 1,486,848,087.49 and 369,490,181.32 is: 554,451,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,845,684.11 : 1,486,848,087.49 = 369,490,181.32 : x
  2. Step 2: Convert to fraction form
    990,845,684.11/1,486,848,087.49 = 369,490,181.32/x
  3. Step 3: Cross multiply
    990,845,684.11x = 1,486,848,087.49 × 369,490,181.32
  4. Step 4: Simplify right side
    990,845,684.11x = 549,375,769,441,975,296
  5. Step 5: Solve for x
    x = 549,375,769,441,975,296/990,845,684.11
  6. Step 6: Final answer
    x = 554,451,392.64

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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.