Home / 290,368,575.52-400,622,671.86-172,799,654.56

Finding the Fourth Proportional to 290,368,575.52, 400,622,671.86 and 172,799,654.56

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Solution

The fourth proportional to 290,368,575.52, 400,622,671.86 and 172,799,654.56 is: 238,412,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,368,575.52 : 400,622,671.86 = 172,799,654.56 : x
  2. Step 2: Convert to fraction form
    290,368,575.52/400,622,671.86 = 172,799,654.56/x
  3. Step 3: Cross multiply
    290,368,575.52x = 400,622,671.86 × 172,799,654.56
  4. Step 4: Simplify right side
    290,368,575.52x = 69,227,459,306,312,240
  5. Step 5: Solve for x
    x = 69,227,459,306,312,240/290,368,575.52
  6. Step 6: Final answer
    x = 238,412,366.70

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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.