Home / 989,274,805.20-1,483,912,207.80-262,337,000.40

Finding the Fourth Proportional to 989,274,805.20, 1,483,912,207.80 and 262,337,000.40

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Solution

The fourth proportional to 989,274,805.20, 1,483,912,207.80 and 262,337,000.40 is: 393,505,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,274,805.20 : 1,483,912,207.80 = 262,337,000.40 : x
  2. Step 2: Convert to fraction form
    989,274,805.20/1,483,912,207.80 = 262,337,000.40/x
  3. Step 3: Cross multiply
    989,274,805.20x = 1,483,912,207.80 × 262,337,000.40
  4. Step 4: Simplify right side
    989,274,805.20x = 389,285,077,451,193,472
  5. Step 5: Solve for x
    x = 389,285,077,451,193,472/989,274,805.20
  6. Step 6: Final answer
    x = 393,505,500.60

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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.