Home / 66,574,025.70-99,871,968.15-20,515,902.54

Finding the Fourth Proportional to 66,574,025.70, 99,871,968.15 and 20,515,902.54

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Solution

The fourth proportional to 66,574,025.70, 99,871,968.15 and 20,515,902.54 is: 30,777,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574,025.70 : 99,871,968.15 = 20,515,902.54 : x
  2. Step 2: Convert to fraction form
    66,574,025.70/99,871,968.15 = 20,515,902.54/x
  3. Step 3: Cross multiply
    66,574,025.70x = 99,871,968.15 × 20,515,902.54
  4. Step 4: Simplify right side
    66,574,025.70x = 2,048,963,565,043,384.25
  5. Step 5: Solve for x
    x = 2,048,963,565,043,384.25/66,574,025.70
  6. Step 6: Final answer
    x = 30,777,221.95

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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.