Home / 424,016,443.20-585,139,171.68-238,378,284.48

Finding the Fourth Proportional to 424,016,443.20, 585,139,171.68 and 238,378,284.48

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Solution

The fourth proportional to 424,016,443.20, 585,139,171.68 and 238,378,284.48 is: 328,960,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,016,443.20 : 585,139,171.68 = 238,378,284.48 : x
  2. Step 2: Convert to fraction form
    424,016,443.20/585,139,171.68 = 238,378,284.48/x
  3. Step 3: Cross multiply
    424,016,443.20x = 585,139,171.68 × 238,378,284.48
  4. Step 4: Simplify right side
    424,016,443.20x = 139,484,471,927,126,576
  5. Step 5: Solve for x
    x = 139,484,471,927,126,576/424,016,443.20
  6. Step 6: Final answer
    x = 328,960,053.71

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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.