Home / 660,301,910.60-990,547,344.30-200,276,083.40

Finding the Fourth Proportional to 660,301,910.60, 990,547,344.30 and 200,276,083.40

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Solution

The fourth proportional to 660,301,910.60, 990,547,344.30 and 200,276,083.40 is: 300,442,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,301,910.60 : 990,547,344.30 = 200,276,083.40 : x
  2. Step 2: Convert to fraction form
    660,301,910.60/990,547,344.30 = 200,276,083.40/x
  3. Step 3: Cross multiply
    660,301,910.60x = 990,547,344.30 × 200,276,083.40
  4. Step 4: Simplify right side
    660,301,910.60x = 198,382,942,538,675,296
  5. Step 5: Solve for x
    x = 198,382,942,538,675,296/660,301,910.60
  6. Step 6: Final answer
    x = 300,442,781.33

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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.