Home / 61,209,107.80-91,601,085.30-42,077,231.80

Finding the Fourth Proportional to 61,209,107.80, 91,601,085.30 and 42,077,231.80

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Solution

The fourth proportional to 61,209,107.80, 91,601,085.30 and 42,077,231.80 is: 62,969,715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,209,107.80 : 91,601,085.30 = 42,077,231.80 : x
  2. Step 2: Convert to fraction form
    61,209,107.80/91,601,085.30 = 42,077,231.80/x
  3. Step 3: Cross multiply
    61,209,107.80x = 91,601,085.30 × 42,077,231.80
  4. Step 4: Simplify right side
    61,209,107.80x = 3,854,320,099,299,672
  5. Step 5: Solve for x
    x = 3,854,320,099,299,672/61,209,107.80
  6. Step 6: Final answer
    x = 62,969,715.42

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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.