Home / 391,014,315.81-539,600,109.48-214,813,725.48

Finding the Fourth Proportional to 391,014,315.81, 539,600,109.48 and 214,813,725.48

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Solution

The fourth proportional to 391,014,315.81, 539,600,109.48 and 214,813,725.48 is: 296,443,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,014,315.81 : 539,600,109.48 = 214,813,725.48 : x
  2. Step 2: Convert to fraction form
    391,014,315.81/539,600,109.48 = 214,813,725.48/x
  3. Step 3: Cross multiply
    391,014,315.81x = 539,600,109.48 × 214,813,725.48
  4. Step 4: Simplify right side
    391,014,315.81x = 115,913,509,786,814,656
  5. Step 5: Solve for x
    x = 115,913,509,786,814,656/391,014,315.81
  6. Step 6: Final answer
    x = 296,443,135.46

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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.