Home / 768,308,414.52-1,152,385,061.58-520,902,220.20

Finding the Fourth Proportional to 768,308,414.52, 1,152,385,061.58 and 520,902,220.20

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Solution

The fourth proportional to 768,308,414.52, 1,152,385,061.58 and 520,902,220.20 is: 781,300,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,308,414.52 : 1,152,385,061.58 = 520,902,220.20 : x
  2. Step 2: Convert to fraction form
    768,308,414.52/1,152,385,061.58 = 520,902,220.20/x
  3. Step 3: Cross multiply
    768,308,414.52x = 1,152,385,061.58 × 520,902,220.20
  4. Step 4: Simplify right side
    768,308,414.52x = 600,279,937,102,335,616
  5. Step 5: Solve for x
    x = 600,279,937,102,335,616/768,308,414.52
  6. Step 6: Final answer
    x = 781,300,745.58

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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.