Home / 309,978,437.24-427,800,489.18-231,525,935.84

Finding the Fourth Proportional to 309,978,437.24, 427,800,489.18 and 231,525,935.84

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Solution

The fourth proportional to 309,978,437.24, 427,800,489.18 and 231,525,935.84 is: 319,528,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,978,437.24 : 427,800,489.18 = 231,525,935.84 : x
  2. Step 2: Convert to fraction form
    309,978,437.24/427,800,489.18 = 231,525,935.84/x
  3. Step 3: Cross multiply
    309,978,437.24x = 427,800,489.18 × 231,525,935.84
  4. Step 4: Simplify right side
    309,978,437.24x = 99,046,908,610,209,296
  5. Step 5: Solve for x
    x = 99,046,908,610,209,296/309,978,437.24
  6. Step 6: Final answer
    x = 319,528,382.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.