Home / 1,126,677,614.82-1,688,823,625.98-378,981,597.48

Finding the Fourth Proportional to 1,126,677,614.82, 1,688,823,625.98 and 378,981,597.48

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Solution

The fourth proportional to 1,126,677,614.82, 1,688,823,625.98 and 378,981,597.48 is: 568,071,174.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,677,614.82 : 1,688,823,625.98 = 378,981,597.48 : x
  2. Step 2: Convert to fraction form
    1,126,677,614.82/1,688,823,625.98 = 378,981,597.48/x
  3. Step 3: Cross multiply
    1,126,677,614.82x = 1,688,823,625.98 × 378,981,597.48
  4. Step 4: Simplify right side
    1,126,677,614.82x = 640,033,075,635,866,496
  5. Step 5: Solve for x
    x = 640,033,075,635,866,496/1,126,677,614.82
  6. Step 6: Final answer
    x = 568,071,174.24

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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.