Home / 279,648,306.72-385,960,120.32-168,251,741.28

Finding the Fourth Proportional to 279,648,306.72, 385,960,120.32 and 168,251,741.28

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Solution

The fourth proportional to 279,648,306.72, 385,960,120.32 and 168,251,741.28 is: 232,214,752.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,648,306.72 : 385,960,120.32 = 168,251,741.28 : x
  2. Step 2: Convert to fraction form
    279,648,306.72/385,960,120.32 = 168,251,741.28/x
  3. Step 3: Cross multiply
    279,648,306.72x = 385,960,120.32 × 168,251,741.28
  4. Step 4: Simplify right side
    279,648,306.72x = 64,938,462,308,478,312
  5. Step 5: Solve for x
    x = 64,938,462,308,478,312/279,648,306.72
  6. Step 6: Final answer
    x = 232,214,752.42

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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.