Home / 139,968,384.30-209,952,576.45-123,529,142.70

Finding the Fourth Proportional to 139,968,384.30, 209,952,576.45 and 123,529,142.70

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Solution

The fourth proportional to 139,968,384.30, 209,952,576.45 and 123,529,142.70 is: 185,293,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,384.30 : 209,952,576.45 = 123,529,142.70 : x
  2. Step 2: Convert to fraction form
    139,968,384.30/209,952,576.45 = 123,529,142.70/x
  3. Step 3: Cross multiply
    139,968,384.30x = 209,952,576.45 × 123,529,142.70
  4. Step 4: Simplify right side
    139,968,384.30x = 25,935,261,776,524,708
  5. Step 5: Solve for x
    x = 25,935,261,776,524,708/139,968,384.30
  6. Step 6: Final answer
    x = 185,293,714.05

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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.