Home / 321,918,325.20-482,912,917.20-103,531,503.60

Finding the Fourth Proportional to 321,918,325.20, 482,912,917.20 and 103,531,503.60

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Solution

The fourth proportional to 321,918,325.20, 482,912,917.20 and 103,531,503.60 is: 155,308,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,918,325.20 : 482,912,917.20 = 103,531,503.60 : x
  2. Step 2: Convert to fraction form
    321,918,325.20/482,912,917.20 = 103,531,503.60/x
  3. Step 3: Cross multiply
    321,918,325.20x = 482,912,917.20 × 103,531,503.60
  4. Step 4: Simplify right side
    321,918,325.20x = 49,996,700,425,578,296
  5. Step 5: Solve for x
    x = 49,996,700,425,578,296/321,918,325.20
  6. Step 6: Final answer
    x = 155,308,649.78

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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.