Home / 219,697,907.40-329,068,564.20-133,285,600.80

Finding the Fourth Proportional to 219,697,907.40, 329,068,564.20 and 133,285,600.80

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Solution

The fourth proportional to 219,697,907.40, 329,068,564.20 and 133,285,600.80 is: 199,638,229.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,697,907.40 : 329,068,564.20 = 133,285,600.80 : x
  2. Step 2: Convert to fraction form
    219,697,907.40/329,068,564.20 = 133,285,600.80/x
  3. Step 3: Cross multiply
    219,697,907.40x = 329,068,564.20 × 133,285,600.80
  4. Step 4: Simplify right side
    219,697,907.40x = 43,860,101,283,790,368
  5. Step 5: Solve for x
    x = 43,860,101,283,790,368/219,697,907.40
  6. Step 6: Final answer
    x = 199,638,229.62

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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.