Home / 140,241,418.80-210,362,128.20-138,328,231.20

Finding the Fourth Proportional to 140,241,418.80, 210,362,128.20 and 138,328,231.20

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Solution

The fourth proportional to 140,241,418.80, 210,362,128.20 and 138,328,231.20 is: 207,492,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,241,418.80 : 210,362,128.20 = 138,328,231.20 : x
  2. Step 2: Convert to fraction form
    140,241,418.80/210,362,128.20 = 138,328,231.20/x
  3. Step 3: Cross multiply
    140,241,418.80x = 210,362,128.20 × 138,328,231.20
  4. Step 4: Simplify right side
    140,241,418.80x = 29,099,021,105,373,636
  5. Step 5: Solve for x
    x = 29,099,021,105,373,636/140,241,418.80
  6. Step 6: Final answer
    x = 207,492,346.80

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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.