Home / 320,781,389.67-442,602,443.68-181,552,147.33

Finding the Fourth Proportional to 320,781,389.67, 442,602,443.68 and 181,552,147.33

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Solution

The fourth proportional to 320,781,389.67, 442,602,443.68 and 181,552,147.33 is: 250,499,020.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,781,389.67 : 442,602,443.68 = 181,552,147.33 : x
  2. Step 2: Convert to fraction form
    320,781,389.67/442,602,443.68 = 181,552,147.33/x
  3. Step 3: Cross multiply
    320,781,389.67x = 442,602,443.68 × 181,552,147.33
  4. Step 4: Simplify right side
    320,781,389.67x = 80,355,424,063,609,392
  5. Step 5: Solve for x
    x = 80,355,424,063,609,392/320,781,389.67
  6. Step 6: Final answer
    x = 250,499,020.99

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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.