Home / 77,985,624.23-107,623,524.72-43,178,315.15

Finding the Fourth Proportional to 77,985,624.23, 107,623,524.72 and 43,178,315.15

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Solution

The fourth proportional to 77,985,624.23, 107,623,524.72 and 43,178,315.15 is: 59,587,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,985,624.23 : 107,623,524.72 = 43,178,315.15 : x
  2. Step 2: Convert to fraction form
    77,985,624.23/107,623,524.72 = 43,178,315.15/x
  3. Step 3: Cross multiply
    77,985,624.23x = 107,623,524.72 × 43,178,315.15
  4. Step 4: Simplify right side
    77,985,624.23x = 4,647,002,467,913,975
  5. Step 5: Solve for x
    x = 4,647,002,467,913,975/77,985,624.23
  6. Step 6: Final answer
    x = 59,587,937.06

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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.