Home / 378,432,194.80-567,648,292.20-256,604,047.60

Finding the Fourth Proportional to 378,432,194.80, 567,648,292.20 and 256,604,047.60

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Solution

The fourth proportional to 378,432,194.80, 567,648,292.20 and 256,604,047.60 is: 384,906,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,432,194.80 : 567,648,292.20 = 256,604,047.60 : x
  2. Step 2: Convert to fraction form
    378,432,194.80/567,648,292.20 = 256,604,047.60/x
  3. Step 3: Cross multiply
    378,432,194.80x = 567,648,292.20 × 256,604,047.60
  4. Step 4: Simplify right side
    378,432,194.80x = 145,660,849,391,747,520
  5. Step 5: Solve for x
    x = 145,660,849,391,747,520/378,432,194.80
  6. Step 6: Final answer
    x = 384,906,071.40

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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.