Home / 424,016,327.70-585,139,012.29-238,378,168.98

Finding the Fourth Proportional to 424,016,327.70, 585,139,012.29 and 238,378,168.98

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Solution

The fourth proportional to 424,016,327.70, 585,139,012.29 and 238,378,168.98 is: 328,959,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,016,327.70 : 585,139,012.29 = 238,378,168.98 : x
  2. Step 2: Convert to fraction form
    424,016,327.70/585,139,012.29 = 238,378,168.98/x
  3. Step 3: Cross multiply
    424,016,327.70x = 585,139,012.29 × 238,378,168.98
  4. Step 4: Simplify right side
    424,016,327.70x = 139,484,366,348,455,904
  5. Step 5: Solve for x
    x = 139,484,366,348,455,904/424,016,327.70
  6. Step 6: Final answer
    x = 328,959,894.32

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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.