Home / 279,648,309.72-385,960,124.46-168,251,744.28

Finding the Fourth Proportional to 279,648,309.72, 385,960,124.46 and 168,251,744.28

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Solution

The fourth proportional to 279,648,309.72, 385,960,124.46 and 168,251,744.28 is: 232,214,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,648,309.72 : 385,960,124.46 = 168,251,744.28 : x
  2. Step 2: Convert to fraction form
    279,648,309.72/385,960,124.46 = 168,251,744.28/x
  3. Step 3: Cross multiply
    279,648,309.72x = 385,960,124.46 × 168,251,744.28
  4. Step 4: Simplify right side
    279,648,309.72x = 64,938,464,162,920,888
  5. Step 5: Solve for x
    x = 64,938,464,162,920,888/279,648,309.72
  6. Step 6: Final answer
    x = 232,214,756.56

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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.