Home / 1,115,473,418.20-1,673,210,127.30-993,029,411.80

Finding the Fourth Proportional to 1,115,473,418.20, 1,673,210,127.30 and 993,029,411.80

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Solution

The fourth proportional to 1,115,473,418.20, 1,673,210,127.30 and 993,029,411.80 is: 1,489,544,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,473,418.20 : 1,673,210,127.30 = 993,029,411.80 : x
  2. Step 2: Convert to fraction form
    1,115,473,418.20/1,673,210,127.30 = 993,029,411.80/x
  3. Step 3: Cross multiply
    1,115,473,418.20x = 1,673,210,127.30 × 993,029,411.80
  4. Step 4: Simplify right side
    1,115,473,418.20x = 1,661,546,868,530,522,112
  5. Step 5: Solve for x
    x = 1,661,546,868,530,522,112/1,115,473,418.20
  6. Step 6: Final answer
    x = 1,489,544,117.70

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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.