Home / 319,470,982.20-478,356,167.70-203,829,420.60

Finding the Fourth Proportional to 319,470,982.20, 478,356,167.70 and 203,829,420.60

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Solution

The fourth proportional to 319,470,982.20, 478,356,167.70 and 203,829,420.60 is: 305,201,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,470,982.20 : 478,356,167.70 = 203,829,420.60 : x
  2. Step 2: Convert to fraction form
    319,470,982.20/478,356,167.70 = 203,829,420.60/x
  3. Step 3: Cross multiply
    319,470,982.20x = 478,356,167.70 × 203,829,420.60
  4. Step 4: Simplify right side
    319,470,982.20x = 97,503,060,502,727,424
  5. Step 5: Solve for x
    x = 97,503,060,502,727,424/319,470,982.20
  6. Step 6: Final answer
    x = 305,201,617.47

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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.