Home / 691,101,008.20-1,036,651,512.30-645,751,376.20

Finding the Fourth Proportional to 691,101,008.20, 1,036,651,512.30 and 645,751,376.20

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Solution

The fourth proportional to 691,101,008.20, 1,036,651,512.30 and 645,751,376.20 is: 968,627,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,101,008.20 : 1,036,651,512.30 = 645,751,376.20 : x
  2. Step 2: Convert to fraction form
    691,101,008.20/1,036,651,512.30 = 645,751,376.20/x
  3. Step 3: Cross multiply
    691,101,008.20x = 1,036,651,512.30 × 645,751,376.20
  4. Step 4: Simplify right side
    691,101,008.20x = 669,419,140,707,536,256
  5. Step 5: Solve for x
    x = 669,419,140,707,536,256/691,101,008.20
  6. Step 6: Final answer
    x = 968,627,064.30

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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.