Home / 321,909,403.20-482,864,104.80-256,152,436.80

Finding the Fourth Proportional to 321,909,403.20, 482,864,104.80 and 256,152,436.80

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Solution

The fourth proportional to 321,909,403.20, 482,864,104.80 and 256,152,436.80 is: 384,228,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,909,403.20 : 482,864,104.80 = 256,152,436.80 : x
  2. Step 2: Convert to fraction form
    321,909,403.20/482,864,104.80 = 256,152,436.80/x
  3. Step 3: Cross multiply
    321,909,403.20x = 482,864,104.80 × 256,152,436.80
  4. Step 4: Simplify right side
    321,909,403.20x = 123,686,817,087,770,592
  5. Step 5: Solve for x
    x = 123,686,817,087,770,592/321,909,403.20
  6. Step 6: Final answer
    x = 384,228,655.20

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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.