Home / 279,503,942.76-385,744,143.24-168,030,871.74

Finding the Fourth Proportional to 279,503,942.76, 385,744,143.24 and 168,030,871.74

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Solution

The fourth proportional to 279,503,942.76, 385,744,143.24 and 168,030,871.74 is: 231,899,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,503,942.76 : 385,744,143.24 = 168,030,871.74 : x
  2. Step 2: Convert to fraction form
    279,503,942.76/385,744,143.24 = 168,030,871.74/x
  3. Step 3: Cross multiply
    279,503,942.76x = 385,744,143.24 × 168,030,871.74
  4. Step 4: Simplify right side
    279,503,942.76x = 64,816,924,657,216,632
  5. Step 5: Solve for x
    x = 64,816,924,657,216,632/279,503,942.76
  6. Step 6: Final answer
    x = 231,899,858.07

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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.