Home / 420,722,328.69-580,599,731.93-235,091,168.37

Finding the Fourth Proportional to 420,722,328.69, 580,599,731.93 and 235,091,168.37

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Solution

The fourth proportional to 420,722,328.69, 580,599,731.93 and 235,091,168.37 is: 324,427,443.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,722,328.69 : 580,599,731.93 = 235,091,168.37 : x
  2. Step 2: Convert to fraction form
    420,722,328.69/580,599,731.93 = 235,091,168.37/x
  3. Step 3: Cross multiply
    420,722,328.69x = 580,599,731.93 × 235,091,168.37
  4. Step 4: Simplify right side
    420,722,328.69x = 136,493,869,333,557,024
  5. Step 5: Solve for x
    x = 136,493,869,333,557,024/420,722,328.69
  6. Step 6: Final answer
    x = 324,427,443.06

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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.