Home / 391,022,168.16-539,616,118.68-214,826,447.28

Finding the Fourth Proportional to 391,022,168.16, 539,616,118.68 and 214,826,447.28

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Solution

The fourth proportional to 391,022,168.16, 539,616,118.68 and 214,826,447.28 is: 296,463,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,022,168.16 : 539,616,118.68 = 214,826,447.28 : x
  2. Step 2: Convert to fraction form
    391,022,168.16/539,616,118.68 = 214,826,447.28/x
  3. Step 3: Cross multiply
    391,022,168.16x = 539,616,118.68 × 214,826,447.28
  4. Step 4: Simplify right side
    391,022,168.16x = 115,923,813,671,047,232
  5. Step 5: Solve for x
    x = 115,923,813,671,047,232/391,022,168.16
  6. Step 6: Final answer
    x = 296,463,533.55

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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.