Home / 72,978,391.44-109,282,304.52-43,814,090.34

Finding the Fourth Proportional to 72,978,391.44, 109,282,304.52 and 43,814,090.34

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Solution

The fourth proportional to 72,978,391.44, 109,282,304.52 and 43,814,090.34 is: 65,609,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,978,391.44 : 109,282,304.52 = 43,814,090.34 : x
  2. Step 2: Convert to fraction form
    72,978,391.44/109,282,304.52 = 43,814,090.34/x
  3. Step 3: Cross multiply
    72,978,391.44x = 109,282,304.52 × 43,814,090.34
  4. Step 4: Simplify right side
    72,978,391.44x = 4,788,104,762,802,671
  5. Step 5: Solve for x
    x = 4,788,104,762,802,671/72,978,391.44
  6. Step 6: Final answer
    x = 65,609,897.24

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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.