Home / 279,987,683.96-420,001,706.32-107,464,497.72

Finding the Fourth Proportional to 279,987,683.96, 420,001,706.32 and 107,464,497.72

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Solution

The fourth proportional to 279,987,683.96, 420,001,706.32 and 107,464,497.72 is: 161,204,492.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,987,683.96 : 420,001,706.32 = 107,464,497.72 : x
  2. Step 2: Convert to fraction form
    279,987,683.96/420,001,706.32 = 107,464,497.72/x
  3. Step 3: Cross multiply
    279,987,683.96x = 420,001,706.32 × 107,464,497.72
  4. Step 4: Simplify right side
    279,987,683.96x = 45,135,272,411,221,752
  5. Step 5: Solve for x
    x = 45,135,272,411,221,752/279,987,683.96
  6. Step 6: Final answer
    x = 161,204,492.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.