Home / 319,441,850-440,829,753.72-172,764,134

Finding the Fourth Proportional to 319,441,850, 440,829,753.72 and 172,764,134

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Solution

The fourth proportional to 319,441,850, 440,829,753.72 and 172,764,134 is: 238,414,505.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,441,850 : 440,829,753.72 = 172,764,134 : x
  2. Step 2: Convert to fraction form
    319,441,850/440,829,753.72 = 172,764,134/x
  3. Step 3: Cross multiply
    319,441,850x = 440,829,753.72 × 172,764,134
  4. Step 4: Simplify right side
    319,441,850x = 76,159,570,642,869,088
  5. Step 5: Solve for x
    x = 76,159,570,642,869,088/319,441,850
  6. Step 6: Final answer
    x = 238,414,505.31

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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.