Home / 120,728,103.40-181,115,774.70-51,640,773.40

Finding the Fourth Proportional to 120,728,103.40, 181,115,774.70 and 51,640,773.40

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Solution

The fourth proportional to 120,728,103.40, 181,115,774.70 and 51,640,773.40 is: 77,471,263.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,728,103.40 : 181,115,774.70 = 51,640,773.40 : x
  2. Step 2: Convert to fraction form
    120,728,103.40/181,115,774.70 = 51,640,773.40/x
  3. Step 3: Cross multiply
    120,728,103.40x = 181,115,774.70 × 51,640,773.40
  4. Step 4: Simplify right side
    120,728,103.40x = 9,352,958,680,448,152
  5. Step 5: Solve for x
    x = 9,352,958,680,448,152/120,728,103.40
  6. Step 6: Final answer
    x = 77,471,263.25

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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.