Home / 490,618,123.08-677,060,991.90-267,599,747.40

Finding the Fourth Proportional to 490,618,123.08, 677,060,991.90 and 267,599,747.40

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Solution

The fourth proportional to 490,618,123.08, 677,060,991.90 and 267,599,747.40 is: 369,292,005.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,618,123.08 : 677,060,991.90 = 267,599,747.40 : x
  2. Step 2: Convert to fraction form
    490,618,123.08/677,060,991.90 = 267,599,747.40/x
  3. Step 3: Cross multiply
    490,618,123.08x = 677,060,991.90 × 267,599,747.40
  4. Step 4: Simplify right side
    490,618,123.08x = 181,181,350,406,833,440
  5. Step 5: Solve for x
    x = 181,181,350,406,833,440/490,618,123.08
  6. Step 6: Final answer
    x = 369,292,005.09

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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.