Home / 161,684,335.80-242,561,933.10-79,842,421.80

Finding the Fourth Proportional to 161,684,335.80, 242,561,933.10 and 79,842,421.80

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Solution

The fourth proportional to 161,684,335.80, 242,561,933.10 and 79,842,421.80 is: 119,781,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,684,335.80 : 242,561,933.10 = 79,842,421.80 : x
  2. Step 2: Convert to fraction form
    161,684,335.80/242,561,933.10 = 79,842,421.80/x
  3. Step 3: Cross multiply
    161,684,335.80x = 242,561,933.10 × 79,842,421.80
  4. Step 4: Simplify right side
    161,684,335.80x = 19,366,732,175,193,580
  5. Step 5: Solve for x
    x = 19,366,732,175,193,580/161,684,335.80
  6. Step 6: Final answer
    x = 119,781,128.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.