Home / 109,385,667.20-164,078,500.80-68,570,998.40

Finding the Fourth Proportional to 109,385,667.20, 164,078,500.80 and 68,570,998.40

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Solution

The fourth proportional to 109,385,667.20, 164,078,500.80 and 68,570,998.40 is: 102,856,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,385,667.20 : 164,078,500.80 = 68,570,998.40 : x
  2. Step 2: Convert to fraction form
    109,385,667.20/164,078,500.80 = 68,570,998.40/x
  3. Step 3: Cross multiply
    109,385,667.20x = 164,078,500.80 × 68,570,998.40
  4. Step 4: Simplify right side
    109,385,667.20x = 11,251,026,615,831,200
  5. Step 5: Solve for x
    x = 11,251,026,615,831,200/109,385,667.20
  6. Step 6: Final answer
    x = 102,856,497.60

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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.