Home / 549,123,998.70-757,837,852.11-311,011,538.70

Finding the Fourth Proportional to 549,123,998.70, 757,837,852.11 and 311,011,538.70

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Solution

The fourth proportional to 549,123,998.70, 757,837,852.11 and 311,011,538.70 is: 429,222,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,123,998.70 : 757,837,852.11 = 311,011,538.70 : x
  2. Step 2: Convert to fraction form
    549,123,998.70/757,837,852.11 = 311,011,538.70/x
  3. Step 3: Cross multiply
    549,123,998.70x = 757,837,852.11 × 311,011,538.70
  4. Step 4: Simplify right side
    549,123,998.70x = 235,696,316,469,834,144
  5. Step 5: Solve for x
    x = 235,696,316,469,834,144/549,123,998.70
  6. Step 6: Final answer
    x = 429,222,392.44

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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.