Home / 280,902,480.80-421,353,721.20-246,890,256.80

Finding the Fourth Proportional to 280,902,480.80, 421,353,721.20 and 246,890,256.80

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Solution

The fourth proportional to 280,902,480.80, 421,353,721.20 and 246,890,256.80 is: 370,335,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,902,480.80 : 421,353,721.20 = 246,890,256.80 : x
  2. Step 2: Convert to fraction form
    280,902,480.80/421,353,721.20 = 246,890,256.80/x
  3. Step 3: Cross multiply
    280,902,480.80x = 421,353,721.20 × 246,890,256.80
  4. Step 4: Simplify right side
    280,902,480.80x = 104,028,128,430,703,600
  5. Step 5: Solve for x
    x = 104,028,128,430,703,600/280,902,480.80
  6. Step 6: Final answer
    x = 370,335,385.20

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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.