Home / 1,213,781,053.14-1,675,017,180-685,149,604.56

Finding the Fourth Proportional to 1,213,781,053.14, 1,675,017,180 and 685,149,604.56

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Solution

The fourth proportional to 1,213,781,053.14, 1,675,017,180 and 685,149,604.56 is: 945,506,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,781,053.14 : 1,675,017,180 = 685,149,604.56 : x
  2. Step 2: Convert to fraction form
    1,213,781,053.14/1,675,017,180 = 685,149,604.56/x
  3. Step 3: Cross multiply
    1,213,781,053.14x = 1,675,017,180 × 685,149,604.56
  4. Step 4: Simplify right side
    1,213,781,053.14x = 1,147,637,358,508,206,208
  5. Step 5: Solve for x
    x = 1,147,637,358,508,206,208/1,213,781,053.14
  6. Step 6: Final answer
    x = 945,506,074.21

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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.