Home / 122,314,430.72-168,791,731.36-66,557,949.48

Finding the Fourth Proportional to 122,314,430.72, 168,791,731.36 and 66,557,949.48

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Solution

The fourth proportional to 122,314,430.72, 168,791,731.36 and 66,557,949.48 is: 91,848,782.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,314,430.72 : 168,791,731.36 = 66,557,949.48 : x
  2. Step 2: Convert to fraction form
    122,314,430.72/168,791,731.36 = 66,557,949.48/x
  3. Step 3: Cross multiply
    122,314,430.72x = 168,791,731.36 × 66,557,949.48
  4. Step 4: Simplify right side
    122,314,430.72x = 11,234,431,528,500,612
  5. Step 5: Solve for x
    x = 11,234,431,528,500,612/122,314,430.72
  6. Step 6: Final answer
    x = 91,848,782.37

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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.