Home / 786,650,331.20-1,178,967,727.20-699,982,145.60

Finding the Fourth Proportional to 786,650,331.20, 1,178,967,727.20 and 699,982,145.60

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Solution

The fourth proportional to 786,650,331.20, 1,178,967,727.20 and 699,982,145.60 is: 1,049,076,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,650,331.20 : 1,178,967,727.20 = 699,982,145.60 : x
  2. Step 2: Convert to fraction form
    786,650,331.20/1,178,967,727.20 = 699,982,145.60/x
  3. Step 3: Cross multiply
    786,650,331.20x = 1,178,967,727.20 × 699,982,145.60
  4. Step 4: Simplify right side
    786,650,331.20x = 825,256,359,278,611,584
  5. Step 5: Solve for x
    x = 825,256,359,278,611,584/786,650,331.20
  6. Step 6: Final answer
    x = 1,049,076,478.52

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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.