Home / 287,728,234.20-431,592,351.30-105,951,792.60

Finding the Fourth Proportional to 287,728,234.20, 431,592,351.30 and 105,951,792.60

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Solution

The fourth proportional to 287,728,234.20, 431,592,351.30 and 105,951,792.60 is: 158,927,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,728,234.20 : 431,592,351.30 = 105,951,792.60 : x
  2. Step 2: Convert to fraction form
    287,728,234.20/431,592,351.30 = 105,951,792.60/x
  3. Step 3: Cross multiply
    287,728,234.20x = 431,592,351.30 × 105,951,792.60
  4. Step 4: Simplify right side
    287,728,234.20x = 45,727,983,292,683,936
  5. Step 5: Solve for x
    x = 45,727,983,292,683,936/287,728,234.20
  6. Step 6: Final answer
    x = 158,927,688.90

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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.