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Finding the Fourth Proportional to 996,909,739.20, 1,495,364,608.80 and 670,392,388.80

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Solution

The fourth proportional to 996,909,739.20, 1,495,364,608.80 and 670,392,388.80 is: 1,005,588,583.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,909,739.20 : 1,495,364,608.80 = 670,392,388.80 : x
  2. Step 2: Convert to fraction form
    996,909,739.20/1,495,364,608.80 = 670,392,388.80/x
  3. Step 3: Cross multiply
    996,909,739.20x = 1,495,364,608.80 × 670,392,388.80
  4. Step 4: Simplify right side
    996,909,739.20x = 1,002,481,052,220,409,344
  5. Step 5: Solve for x
    x = 1,002,481,052,220,409,344/996,909,739.20
  6. Step 6: Final answer
    x = 1,005,588,583.20

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1.5x scale

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.