Home / 449,946,171.95-620,926,628.77-251,710,977.20

Finding the Fourth Proportional to 449,946,171.95, 620,926,628.77 and 251,710,977.20

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Solution

The fourth proportional to 449,946,171.95, 620,926,628.77 and 251,710,977.20 is: 347,361,658.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,946,171.95 : 620,926,628.77 = 251,710,977.20 : x
  2. Step 2: Convert to fraction form
    449,946,171.95/620,926,628.77 = 251,710,977.20/x
  3. Step 3: Cross multiply
    449,946,171.95x = 620,926,628.77 × 251,710,977.20
  4. Step 4: Simplify right side
    449,946,171.95x = 156,294,048,494,093,696
  5. Step 5: Solve for x
    x = 156,294,048,494,093,696/449,946,171.95
  6. Step 6: Final answer
    x = 347,361,658.43

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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.