Home / 551,428,939.60-827,143,409.40-491,163,530.20

Finding the Fourth Proportional to 551,428,939.60, 827,143,409.40 and 491,163,530.20

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Solution

The fourth proportional to 551,428,939.60, 827,143,409.40 and 491,163,530.20 is: 736,745,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,428,939.60 : 827,143,409.40 = 491,163,530.20 : x
  2. Step 2: Convert to fraction form
    551,428,939.60/827,143,409.40 = 491,163,530.20/x
  3. Step 3: Cross multiply
    551,428,939.60x = 827,143,409.40 × 491,163,530.20
  4. Step 4: Simplify right side
    551,428,939.60x = 406,262,676,942,567,872
  5. Step 5: Solve for x
    x = 406,262,676,942,567,872/551,428,939.60
  6. Step 6: Final answer
    x = 736,745,295.30

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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.