Home / 684,354,634.20-1,026,531,951.30-644,043,850.20

Finding the Fourth Proportional to 684,354,634.20, 1,026,531,951.30 and 644,043,850.20

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Solution

The fourth proportional to 684,354,634.20, 1,026,531,951.30 and 644,043,850.20 is: 966,065,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,354,634.20 : 1,026,531,951.30 = 644,043,850.20 : x
  2. Step 2: Convert to fraction form
    684,354,634.20/1,026,531,951.30 = 644,043,850.20/x
  3. Step 3: Cross multiply
    684,354,634.20x = 1,026,531,951.30 × 644,043,850.20
  4. Step 4: Simplify right side
    684,354,634.20x = 661,131,590,268,570,880
  5. Step 5: Solve for x
    x = 661,131,590,268,570,880/684,354,634.20
  6. Step 6: Final answer
    x = 966,065,775.30

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Double scale
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Similar ratio
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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.