Home / 330,105,154.20-493,982,000.10-287,442,907.80

Finding the Fourth Proportional to 330,105,154.20, 493,982,000.10 and 287,442,907.80

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Solution

The fourth proportional to 330,105,154.20, 493,982,000.10 and 287,442,907.80 is: 430,140,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,105,154.20 : 493,982,000.10 = 287,442,907.80 : x
  2. Step 2: Convert to fraction form
    330,105,154.20/493,982,000.10 = 287,442,907.80/x
  3. Step 3: Cross multiply
    330,105,154.20x = 493,982,000.10 × 287,442,907.80
  4. Step 4: Simplify right side
    330,105,154.20x = 141,991,622,509,603,904
  5. Step 5: Solve for x
    x = 141,991,622,509,603,904/330,105,154.20
  6. Step 6: Final answer
    x = 430,140,580.06

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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.