Home / 70,526,128.72-97,320,716.40-39,580,321.36

Finding the Fourth Proportional to 70,526,128.72, 97,320,716.40 and 39,580,321.36

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Solution

The fourth proportional to 70,526,128.72, 97,320,716.40 and 39,580,321.36 is: 54,617,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,526,128.72 : 97,320,716.40 = 39,580,321.36 : x
  2. Step 2: Convert to fraction form
    70,526,128.72/97,320,716.40 = 39,580,321.36/x
  3. Step 3: Cross multiply
    70,526,128.72x = 97,320,716.40 × 39,580,321.36
  4. Step 4: Simplify right side
    70,526,128.72x = 3,851,985,230,097,422.50
  5. Step 5: Solve for x
    x = 3,851,985,230,097,422.50/70,526,128.72
  6. Step 6: Final answer
    x = 54,617,845.90

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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.