Home / 379,256,856.80-523,416,936.84-214,255,055.12

Finding the Fourth Proportional to 379,256,856.80, 523,416,936.84 and 214,255,055.12

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Solution

The fourth proportional to 379,256,856.80, 523,416,936.84 and 214,255,055.12 is: 295,695,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,256,856.80 : 523,416,936.84 = 214,255,055.12 : x
  2. Step 2: Convert to fraction form
    379,256,856.80/523,416,936.84 = 214,255,055.12/x
  3. Step 3: Cross multiply
    379,256,856.80x = 523,416,936.84 × 214,255,055.12
  4. Step 4: Simplify right side
    379,256,856.80x = 112,144,724,653,395,760
  5. Step 5: Solve for x
    x = 112,144,724,653,395,760/379,256,856.80
  6. Step 6: Final answer
    x = 295,695,971.33

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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.