Home / 654,813,561.90-982,375,170.30-212,155,525.74

Finding the Fourth Proportional to 654,813,561.90, 982,375,170.30 and 212,155,525.74

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Solution

The fourth proportional to 654,813,561.90, 982,375,170.30 and 212,155,525.74 is: 318,283,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,813,561.90 : 982,375,170.30 = 212,155,525.74 : x
  2. Step 2: Convert to fraction form
    654,813,561.90/982,375,170.30 = 212,155,525.74/x
  3. Step 3: Cross multiply
    654,813,561.90x = 982,375,170.30 × 212,155,525.74
  4. Step 4: Simplify right side
    654,813,561.90x = 208,416,320,728,918,528
  5. Step 5: Solve for x
    x = 208,416,320,728,918,528/654,813,561.90
  6. Step 6: Final answer
    x = 318,283,451.74

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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.