Home / 120,728,102.40-181,115,773.20-51,640,772.40

Finding the Fourth Proportional to 120,728,102.40, 181,115,773.20 and 51,640,772.40

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Solution

The fourth proportional to 120,728,102.40, 181,115,773.20 and 51,640,772.40 is: 77,471,261.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,728,102.40 : 181,115,773.20 = 51,640,772.40 : x
  2. Step 2: Convert to fraction form
    120,728,102.40/181,115,773.20 = 51,640,772.40/x
  3. Step 3: Cross multiply
    120,728,102.40x = 181,115,773.20 × 51,640,772.40
  4. Step 4: Simplify right side
    120,728,102.40x = 9,352,958,421,871,218
  5. Step 5: Solve for x
    x = 9,352,958,421,871,218/120,728,102.40
  6. Step 6: Final answer
    x = 77,471,261.75

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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.