Home / 1,291,580,385.56-1,937,678,493.90-418,182,016.85

Finding the Fourth Proportional to 1,291,580,385.56, 1,937,678,493.90 and 418,182,016.85

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Solution

The fourth proportional to 1,291,580,385.56, 1,937,678,493.90 and 418,182,016.85 is: 627,372,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,580,385.56 : 1,937,678,493.90 = 418,182,016.85 : x
  2. Step 2: Convert to fraction form
    1,291,580,385.56/1,937,678,493.90 = 418,182,016.85/x
  3. Step 3: Cross multiply
    1,291,580,385.56x = 1,937,678,493.90 × 418,182,016.85
  4. Step 4: Simplify right side
    1,291,580,385.56x = 810,302,300,576,284,160
  5. Step 5: Solve for x
    x = 810,302,300,576,284,160/1,291,580,385.56
  6. Step 6: Final answer
    x = 627,372,720.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.