Home / 72,632,447.89-100,231,962.03-39,591,973.60

Finding the Fourth Proportional to 72,632,447.89, 100,231,962.03 and 39,591,973.60

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Solution

The fourth proportional to 72,632,447.89, 100,231,962.03 and 39,591,973.60 is: 54,636,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,632,447.89 : 100,231,962.03 = 39,591,973.60 : x
  2. Step 2: Convert to fraction form
    72,632,447.89/100,231,962.03 = 39,591,973.60/x
  3. Step 3: Cross multiply
    72,632,447.89x = 100,231,962.03 × 39,591,973.60
  4. Step 4: Simplify right side
    72,632,447.89x = 3,968,381,194,317,382
  5. Step 5: Solve for x
    x = 3,968,381,194,317,382/72,632,447.89
  6. Step 6: Final answer
    x = 54,636,478.73

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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.