Home / 1,131,035,479.20-1,696,553,218.80-313,147,780.20

Finding the Fourth Proportional to 1,131,035,479.20, 1,696,553,218.80 and 313,147,780.20

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Solution

The fourth proportional to 1,131,035,479.20, 1,696,553,218.80 and 313,147,780.20 is: 469,721,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,035,479.20 : 1,696,553,218.80 = 313,147,780.20 : x
  2. Step 2: Convert to fraction form
    1,131,035,479.20/1,696,553,218.80 = 313,147,780.20/x
  3. Step 3: Cross multiply
    1,131,035,479.20x = 1,696,553,218.80 × 313,147,780.20
  4. Step 4: Simplify right side
    1,131,035,479.20x = 531,271,874,458,384,896
  5. Step 5: Solve for x
    x = 531,271,874,458,384,896/1,131,035,479.20
  6. Step 6: Final answer
    x = 469,721,670.30

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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.