Home / 210,414,519.20-315,621,778.80-64,835,114.60

Finding the Fourth Proportional to 210,414,519.20, 315,621,778.80 and 64,835,114.60

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Solution

The fourth proportional to 210,414,519.20, 315,621,778.80 and 64,835,114.60 is: 97,252,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,414,519.20 : 315,621,778.80 = 64,835,114.60 : x
  2. Step 2: Convert to fraction form
    210,414,519.20/315,621,778.80 = 64,835,114.60/x
  3. Step 3: Cross multiply
    210,414,519.20x = 315,621,778.80 × 64,835,114.60
  4. Step 4: Simplify right side
    210,414,519.20x = 20,463,374,198,753,852
  5. Step 5: Solve for x
    x = 20,463,374,198,753,852/210,414,519.20
  6. Step 6: Final answer
    x = 97,252,671.90

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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.