Home / 280,946,648.84-421,228,433.04-142,505,302.71

Finding the Fourth Proportional to 280,946,648.84, 421,228,433.04 and 142,505,302.71

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Solution

The fourth proportional to 280,946,648.84, 421,228,433.04 and 142,505,302.71 is: 213,660,798.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,946,648.84 : 421,228,433.04 = 142,505,302.71 : x
  2. Step 2: Convert to fraction form
    280,946,648.84/421,228,433.04 = 142,505,302.71/x
  3. Step 3: Cross multiply
    280,946,648.84x = 421,228,433.04 × 142,505,302.71
  4. Step 4: Simplify right side
    280,946,648.84x = 60,027,285,360,424,176
  5. Step 5: Solve for x
    x = 60,027,285,360,424,176/280,946,648.84
  6. Step 6: Final answer
    x = 213,660,798.62

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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.