Home / 91,245,410.85-125,918,128.04-49,430,273.09

Finding the Fourth Proportional to 91,245,410.85, 125,918,128.04 and 49,430,273.09

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Solution

The fourth proportional to 91,245,410.85, 125,918,128.04 and 49,430,273.09 is: 68,213,484.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,245,410.85 : 125,918,128.04 = 49,430,273.09 : x
  2. Step 2: Convert to fraction form
    91,245,410.85/125,918,128.04 = 49,430,273.09/x
  3. Step 3: Cross multiply
    91,245,410.85x = 125,918,128.04 × 49,430,273.09
  4. Step 4: Simplify right side
    91,245,410.85x = 6,224,167,456,066,430
  5. Step 5: Solve for x
    x = 6,224,167,456,066,430/91,245,410.85
  6. Step 6: Final answer
    x = 68,213,484.91

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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.