Home / 70,279,192.08-105,415,680.69-19,161,213.12

Finding the Fourth Proportional to 70,279,192.08, 105,415,680.69 and 19,161,213.12

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Solution

The fourth proportional to 70,279,192.08, 105,415,680.69 and 19,161,213.12 is: 28,740,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,279,192.08 : 105,415,680.69 = 19,161,213.12 : x
  2. Step 2: Convert to fraction form
    70,279,192.08/105,415,680.69 = 19,161,213.12/x
  3. Step 3: Cross multiply
    70,279,192.08x = 105,415,680.69 × 19,161,213.12
  4. Step 4: Simplify right side
    70,279,192.08x = 2,019,892,323,890,958.75
  5. Step 5: Solve for x
    x = 2,019,892,323,890,958.75/70,279,192.08
  6. Step 6: Final answer
    x = 28,740,972.46

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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.