Home / 699,222,047.20-964,926,519.60-385,956,320.28

Finding the Fourth Proportional to 699,222,047.20, 964,926,519.60 and 385,956,320.28

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Solution

The fourth proportional to 699,222,047.20, 964,926,519.60 and 385,956,320.28 is: 532,619,774.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,222,047.20 : 964,926,519.60 = 385,956,320.28 : x
  2. Step 2: Convert to fraction form
    699,222,047.20/964,926,519.60 = 385,956,320.28/x
  3. Step 3: Cross multiply
    699,222,047.20x = 964,926,519.60 × 385,956,320.28
  4. Step 4: Simplify right side
    699,222,047.20x = 372,419,488,845,403,264
  5. Step 5: Solve for x
    x = 372,419,488,845,403,264/699,222,047.20
  6. Step 6: Final answer
    x = 532,619,774.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.