Home / 558,468,328.97-770,661,423.15-320,142,658.34

Finding the Fourth Proportional to 558,468,328.97, 770,661,423.15 and 320,142,658.34

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Solution

The fourth proportional to 558,468,328.97, 770,661,423.15 and 320,142,658.34 is: 441,782,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,468,328.97 : 770,661,423.15 = 320,142,658.34 : x
  2. Step 2: Convert to fraction form
    558,468,328.97/770,661,423.15 = 320,142,658.34/x
  3. Step 3: Cross multiply
    558,468,328.97x = 770,661,423.15 × 320,142,658.34
  4. Step 4: Simplify right side
    558,468,328.97x = 246,721,596,687,328,576
  5. Step 5: Solve for x
    x = 246,721,596,687,328,576/558,468,328.97
  6. Step 6: Final answer
    x = 441,782,611.28

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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.