Home / 549,123,992.20-757,837,843.14-311,011,532.20

Finding the Fourth Proportional to 549,123,992.20, 757,837,843.14 and 311,011,532.20

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Solution

The fourth proportional to 549,123,992.20, 757,837,843.14 and 311,011,532.20 is: 429,222,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,123,992.20 : 757,837,843.14 = 311,011,532.20 : x
  2. Step 2: Convert to fraction form
    549,123,992.20/757,837,843.14 = 311,011,532.20/x
  3. Step 3: Cross multiply
    549,123,992.20x = 757,837,843.14 × 311,011,532.20
  4. Step 4: Simplify right side
    549,123,992.20x = 235,696,308,754,114,656
  5. Step 5: Solve for x
    x = 235,696,308,754,114,656/549,123,992.20
  6. Step 6: Final answer
    x = 429,222,383.47

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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.