Home / 280,902,080.80-421,353,121.20-246,889,856.80

Finding the Fourth Proportional to 280,902,080.80, 421,353,121.20 and 246,889,856.80

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Solution

The fourth proportional to 280,902,080.80, 421,353,121.20 and 246,889,856.80 is: 370,334,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,902,080.80 : 421,353,121.20 = 246,889,856.80 : x
  2. Step 2: Convert to fraction form
    280,902,080.80/421,353,121.20 = 246,889,856.80/x
  3. Step 3: Cross multiply
    280,902,080.80x = 421,353,121.20 × 246,889,856.80
  4. Step 4: Simplify right side
    280,902,080.80x = 104,027,811,755,301,040
  5. Step 5: Solve for x
    x = 104,027,811,755,301,040/280,902,080.80
  6. Step 6: Final answer
    x = 370,334,785.20

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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.