Home / 549,123,996.70-757,837,849.35-311,011,536.70

Finding the Fourth Proportional to 549,123,996.70, 757,837,849.35 and 311,011,536.70

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Solution

The fourth proportional to 549,123,996.70, 757,837,849.35 and 311,011,536.70 is: 429,222,389.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,123,996.70 : 757,837,849.35 = 311,011,536.70 : x
  2. Step 2: Convert to fraction form
    549,123,996.70/757,837,849.35 = 311,011,536.70/x
  3. Step 3: Cross multiply
    549,123,996.70x = 757,837,849.35 × 311,011,536.70
  4. Step 4: Simplify right side
    549,123,996.70x = 235,696,314,095,766,592
  5. Step 5: Solve for x
    x = 235,696,314,095,766,592/549,123,996.70
  6. Step 6: Final answer
    x = 429,222,389.68

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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.