Home / 424,016,329.20-585,139,014.36-238,378,170.48

Finding the Fourth Proportional to 424,016,329.20, 585,139,014.36 and 238,378,170.48

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Solution

The fourth proportional to 424,016,329.20, 585,139,014.36 and 238,378,170.48 is: 328,959,896.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,016,329.20 : 585,139,014.36 = 238,378,170.48 : x
  2. Step 2: Convert to fraction form
    424,016,329.20/585,139,014.36 = 238,378,170.48/x
  3. Step 3: Cross multiply
    424,016,329.20x = 585,139,014.36 × 238,378,170.48
  4. Step 4: Simplify right side
    424,016,329.20x = 139,484,367,719,607,248
  5. Step 5: Solve for x
    x = 139,484,367,719,607,248/424,016,329.20
  6. Step 6: Final answer
    x = 328,959,896.39

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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.