Home / 654,813,572.88-982,375,186.80-212,155,536.72

Finding the Fourth Proportional to 654,813,572.88, 982,375,186.80 and 212,155,536.72

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Solution

The fourth proportional to 654,813,572.88, 982,375,186.80 and 212,155,536.72 is: 318,283,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,813,572.88 : 982,375,186.80 = 212,155,536.72 : x
  2. Step 2: Convert to fraction form
    654,813,572.88/982,375,186.80 = 212,155,536.72/x
  3. Step 3: Cross multiply
    654,813,572.88x = 982,375,186.80 × 212,155,536.72
  4. Step 4: Simplify right side
    654,813,572.88x = 208,416,335,015,964,256
  5. Step 5: Solve for x
    x = 208,416,335,015,964,256/654,813,572.88
  6. Step 6: Final answer
    x = 318,283,468.22

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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.