Home / 143,327,208.30-214,990,812.45-78,606,005.10

Finding the Fourth Proportional to 143,327,208.30, 214,990,812.45 and 78,606,005.10

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Solution

The fourth proportional to 143,327,208.30, 214,990,812.45 and 78,606,005.10 is: 117,909,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,327,208.30 : 214,990,812.45 = 78,606,005.10 : x
  2. Step 2: Convert to fraction form
    143,327,208.30/214,990,812.45 = 78,606,005.10/x
  3. Step 3: Cross multiply
    143,327,208.30x = 214,990,812.45 × 78,606,005.10
  4. Step 4: Simplify right side
    143,327,208.30x = 16,899,568,899,897,842
  5. Step 5: Solve for x
    x = 16,899,568,899,897,842/143,327,208.30
  6. Step 6: Final answer
    x = 117,909,007.65

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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.