Home / 643,852,109,186.40-888,490,042,053.68-350,870,810,578.64

Finding the Fourth Proportional to 643,852,109,186.40, 888,490,042,053.68 and 350,870,810,578.64

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Solution

The fourth proportional to 643,852,109,186.40, 888,490,042,053.68 and 350,870,810,578.64 is: 484,187,621,347.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,852,109,186.40 : 888,490,042,053.68 = 350,870,810,578.64 : x
  2. Step 2: Convert to fraction form
    643,852,109,186.40/888,490,042,053.68 = 350,870,810,578.64/x
  3. Step 3: Cross multiply
    643,852,109,186.40x = 888,490,042,053.68 × 350,870,810,578.64
  4. Step 4: Simplify right side
    643,852,109,186.40x = 311,745,221,246,424,658,739,200
  5. Step 5: Solve for x
    x = 311,745,221,246,424,658,739,200/643,852,109,186.40
  6. Step 6: Final answer
    x = 484,187,621,347.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.