Home / 613,500,852.51-920,518,685.98-214,945,340.78

Finding the Fourth Proportional to 613,500,852.51, 920,518,685.98 and 214,945,340.78

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Solution

The fourth proportional to 613,500,852.51, 920,518,685.98 and 214,945,340.78 is: 322,511,699.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,500,852.51 : 920,518,685.98 = 214,945,340.78 : x
  2. Step 2: Convert to fraction form
    613,500,852.51/920,518,685.98 = 214,945,340.78/x
  3. Step 3: Cross multiply
    613,500,852.51x = 920,518,685.98 × 214,945,340.78
  4. Step 4: Simplify right side
    613,500,852.51x = 197,861,202,654,092,832
  5. Step 5: Solve for x
    x = 197,861,202,654,092,832/613,500,852.51
  6. Step 6: Final answer
    x = 322,511,699.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.