Home / 420,404,017.51-580,146,299.64-232,228,261.49

Finding the Fourth Proportional to 420,404,017.51, 580,146,299.64 and 232,228,261.49

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Solution

The fourth proportional to 420,404,017.51, 580,146,299.64 and 232,228,261.49 is: 320,468,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,404,017.51 : 580,146,299.64 = 232,228,261.49 : x
  2. Step 2: Convert to fraction form
    420,404,017.51/580,146,299.64 = 232,228,261.49/x
  3. Step 3: Cross multiply
    420,404,017.51x = 580,146,299.64 × 232,228,261.49
  4. Step 4: Simplify right side
    420,404,017.51x = 134,726,366,575,253,808
  5. Step 5: Solve for x
    x = 134,726,366,575,253,808/420,404,017.51
  6. Step 6: Final answer
    x = 320,468,789.46

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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.