Home / 290,368,576.52-400,622,673.24-172,799,655.56

Finding the Fourth Proportional to 290,368,576.52, 400,622,673.24 and 172,799,655.56

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Solution

The fourth proportional to 290,368,576.52, 400,622,673.24 and 172,799,655.56 is: 238,412,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,368,576.52 : 400,622,673.24 = 172,799,655.56 : x
  2. Step 2: Convert to fraction form
    290,368,576.52/400,622,673.24 = 172,799,655.56/x
  3. Step 3: Cross multiply
    290,368,576.52x = 400,622,673.24 × 172,799,655.56
  4. Step 4: Simplify right side
    290,368,576.52x = 69,227,459,945,398,432
  5. Step 5: Solve for x
    x = 69,227,459,945,398,432/290,368,576.52
  6. Step 6: Final answer
    x = 238,412,368.08

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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.