Home / 279,459,519.96-385,656,773.04-154,016,239.26

Finding the Fourth Proportional to 279,459,519.96, 385,656,773.04 and 154,016,239.26

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Solution

The fourth proportional to 279,459,519.96, 385,656,773.04 and 154,016,239.26 is: 212,543,862.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,459,519.96 : 385,656,773.04 = 154,016,239.26 : x
  2. Step 2: Convert to fraction form
    279,459,519.96/385,656,773.04 = 154,016,239.26/x
  3. Step 3: Cross multiply
    279,459,519.96x = 385,656,773.04 × 154,016,239.26
  4. Step 4: Simplify right side
    279,459,519.96x = 59,397,405,828,768,160
  5. Step 5: Solve for x
    x = 59,397,405,828,768,160/279,459,519.96
  6. Step 6: Final answer
    x = 212,543,862.66

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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.