Home / 678,623,942.52-1,019,468,261.84-402,456,292.36

Finding the Fourth Proportional to 678,623,942.52, 1,019,468,261.84 and 402,456,292.36

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Solution

The fourth proportional to 678,623,942.52, 1,019,468,261.84 and 402,456,292.36 is: 604,593,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,623,942.52 : 1,019,468,261.84 = 402,456,292.36 : x
  2. Step 2: Convert to fraction form
    678,623,942.52/1,019,468,261.84 = 402,456,292.36/x
  3. Step 3: Cross multiply
    678,623,942.52x = 1,019,468,261.84 × 402,456,292.36
  4. Step 4: Simplify right side
    678,623,942.52x = 410,291,416,838,820,096
  5. Step 5: Solve for x
    x = 410,291,416,838,820,096/678,623,942.52
  6. Step 6: Final answer
    x = 604,593,193.86

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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.