Home / 120,291,380.70-180,512,972.66-51,204,071.46

Finding the Fourth Proportional to 120,291,380.70, 180,512,972.66 and 51,204,071.46

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Solution

The fourth proportional to 120,291,380.70, 180,512,972.66 and 51,204,071.46 is: 76,838,416.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,291,380.70 : 180,512,972.66 = 51,204,071.46 : x
  2. Step 2: Convert to fraction form
    120,291,380.70/180,512,972.66 = 51,204,071.46/x
  3. Step 3: Cross multiply
    120,291,380.70x = 180,512,972.66 × 51,204,071.46
  4. Step 4: Simplify right side
    120,291,380.70x = 9,242,999,152,118,958
  5. Step 5: Solve for x
    x = 9,242,999,152,118,958/120,291,380.70
  6. Step 6: Final answer
    x = 76,838,416.00

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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.