Home / 212,827,976.69-319,088,750.59-130,777,331.25

Finding the Fourth Proportional to 212,827,976.69, 319,088,750.59 and 130,777,331.25

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Solution

The fourth proportional to 212,827,976.69, 319,088,750.59 and 130,777,331.25 is: 196,071,850.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,827,976.69 : 319,088,750.59 = 130,777,331.25 : x
  2. Step 2: Convert to fraction form
    212,827,976.69/319,088,750.59 = 130,777,331.25/x
  3. Step 3: Cross multiply
    212,827,976.69x = 319,088,750.59 × 130,777,331.25
  4. Step 4: Simplify right side
    212,827,976.69x = 41,729,575,235,417,120
  5. Step 5: Solve for x
    x = 41,729,575,235,417,120/212,827,976.69
  6. Step 6: Final answer
    x = 196,071,850.54

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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.