Home / 72,003,915.81-99,365,665.44-38,964,161.46

Finding the Fourth Proportional to 72,003,915.81, 99,365,665.44 and 38,964,161.46

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Solution

The fourth proportional to 72,003,915.81, 99,365,665.44 and 38,964,161.46 is: 53,770,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003,915.81 : 99,365,665.44 = 38,964,161.46 : x
  2. Step 2: Convert to fraction form
    72,003,915.81/99,365,665.44 = 38,964,161.46/x
  3. Step 3: Cross multiply
    72,003,915.81x = 99,365,665.44 × 38,964,161.46
  4. Step 4: Simplify right side
    72,003,915.81x = 3,871,699,831,784,502
  5. Step 5: Solve for x
    x = 3,871,699,831,784,502/72,003,915.81
  6. Step 6: Final answer
    x = 53,770,684.39

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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.