Home / 313,292,371.86-432,249,189.75-187,798,778.64

Finding the Fourth Proportional to 313,292,371.86, 432,249,189.75 and 187,798,778.64

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Solution

The fourth proportional to 313,292,371.86, 432,249,189.75 and 187,798,778.64 is: 259,105,797.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,292,371.86 : 432,249,189.75 = 187,798,778.64 : x
  2. Step 2: Convert to fraction form
    313,292,371.86/432,249,189.75 = 187,798,778.64/x
  3. Step 3: Cross multiply
    313,292,371.86x = 432,249,189.75 × 187,798,778.64
  4. Step 4: Simplify right side
    313,292,371.86x = 81,175,869,903,179,600
  5. Step 5: Solve for x
    x = 81,175,869,903,179,600/313,292,371.86
  6. Step 6: Final answer
    x = 259,105,797.63

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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.