Home / 140,113,843.20-210,170,764.80-91,740,902.40

Finding the Fourth Proportional to 140,113,843.20, 210,170,764.80 and 91,740,902.40

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Solution

The fourth proportional to 140,113,843.20, 210,170,764.80 and 91,740,902.40 is: 137,611,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,113,843.20 : 210,170,764.80 = 91,740,902.40 : x
  2. Step 2: Convert to fraction form
    140,113,843.20/210,170,764.80 = 91,740,902.40/x
  3. Step 3: Cross multiply
    140,113,843.20x = 210,170,764.80 × 91,740,902.40
  4. Step 4: Simplify right side
    140,113,843.20x = 19,281,255,620,850,156
  5. Step 5: Solve for x
    x = 19,281,255,620,850,156/140,113,843.20
  6. Step 6: Final answer
    x = 137,611,353.60

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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.