Home / 549,123,998.20-757,837,851.42-311,011,538.20

Finding the Fourth Proportional to 549,123,998.20, 757,837,851.42 and 311,011,538.20

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Solution

The fourth proportional to 549,123,998.20, 757,837,851.42 and 311,011,538.20 is: 429,222,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,123,998.20 : 757,837,851.42 = 311,011,538.20 : x
  2. Step 2: Convert to fraction form
    549,123,998.20/757,837,851.42 = 311,011,538.20/x
  3. Step 3: Cross multiply
    549,123,998.20x = 757,837,851.42 × 311,011,538.20
  4. Step 4: Simplify right side
    549,123,998.20x = 235,696,315,876,317,216
  5. Step 5: Solve for x
    x = 235,696,315,876,317,216/549,123,998.20
  6. Step 6: Final answer
    x = 429,222,391.75

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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.