Home / 78,952,956.40-118,628,500.20-50,212,860.40

Finding the Fourth Proportional to 78,952,956.40, 118,628,500.20 and 50,212,860.40

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Solution

The fourth proportional to 78,952,956.40, 118,628,500.20 and 50,212,860.40 is: 75,445,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,952,956.40 : 118,628,500.20 = 50,212,860.40 : x
  2. Step 2: Convert to fraction form
    78,952,956.40/118,628,500.20 = 50,212,860.40/x
  3. Step 3: Cross multiply
    78,952,956.40x = 118,628,500.20 × 50,212,860.40
  4. Step 4: Simplify right side
    78,952,956.40x = 5,956,676,320,003,972
  5. Step 5: Solve for x
    x = 5,956,676,320,003,972/78,952,956.40
  6. Step 6: Final answer
    x = 75,445,893.25

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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.