Home / 1,126,677,615.82-1,688,823,627.48-378,981,598.48

Finding the Fourth Proportional to 1,126,677,615.82, 1,688,823,627.48 and 378,981,598.48

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Solution

The fourth proportional to 1,126,677,615.82, 1,688,823,627.48 and 378,981,598.48 is: 568,071,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,677,615.82 : 1,688,823,627.48 = 378,981,598.48 : x
  2. Step 2: Convert to fraction form
    1,126,677,615.82/1,688,823,627.48 = 378,981,598.48/x
  3. Step 3: Cross multiply
    1,126,677,615.82x = 1,688,823,627.48 × 378,981,598.48
  4. Step 4: Simplify right side
    1,126,677,615.82x = 640,033,077,893,162,496
  5. Step 5: Solve for x
    x = 640,033,077,893,162,496/1,126,677,615.82
  6. Step 6: Final answer
    x = 568,071,175.73

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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.