Home / 279,648,309.47-385,960,124.12-168,251,744.03

Finding the Fourth Proportional to 279,648,309.47, 385,960,124.12 and 168,251,744.03

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Solution

The fourth proportional to 279,648,309.47, 385,960,124.12 and 168,251,744.03 is: 232,214,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,648,309.47 : 385,960,124.12 = 168,251,744.03 : x
  2. Step 2: Convert to fraction form
    279,648,309.47/385,960,124.12 = 168,251,744.03/x
  3. Step 3: Cross multiply
    279,648,309.47x = 385,960,124.12 × 168,251,744.03
  4. Step 4: Simplify right side
    279,648,309.47x = 64,938,464,008,384,016
  5. Step 5: Solve for x
    x = 64,938,464,008,384,016/279,648,309.47
  6. Step 6: Final answer
    x = 232,214,756.21

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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.