Home / 207,753,610.40-311,630,415.60-199,817,424.80

Finding the Fourth Proportional to 207,753,610.40, 311,630,415.60 and 199,817,424.80

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Solution

The fourth proportional to 207,753,610.40, 311,630,415.60 and 199,817,424.80 is: 299,726,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,753,610.40 : 311,630,415.60 = 199,817,424.80 : x
  2. Step 2: Convert to fraction form
    207,753,610.40/311,630,415.60 = 199,817,424.80/x
  3. Step 3: Cross multiply
    207,753,610.40x = 311,630,415.60 × 199,817,424.80
  4. Step 4: Simplify right side
    207,753,610.40x = 62,269,187,134,545,752
  5. Step 5: Solve for x
    x = 62,269,187,134,545,752/207,753,610.40
  6. Step 6: Final answer
    x = 299,726,137.20

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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.