Home / 808,529,395.20-1,212,794,092.80-723,876,748.80

Finding the Fourth Proportional to 808,529,395.20, 1,212,794,092.80 and 723,876,748.80

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Solution

The fourth proportional to 808,529,395.20, 1,212,794,092.80 and 723,876,748.80 is: 1,085,815,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,529,395.20 : 1,212,794,092.80 = 723,876,748.80 : x
  2. Step 2: Convert to fraction form
    808,529,395.20/1,212,794,092.80 = 723,876,748.80/x
  3. Step 3: Cross multiply
    808,529,395.20x = 1,212,794,092.80 × 723,876,748.80
  4. Step 4: Simplify right side
    808,529,395.20x = 877,913,444,859,909,376
  5. Step 5: Solve for x
    x = 877,913,444,859,909,376/808,529,395.20
  6. Step 6: Final answer
    x = 1,085,815,123.20

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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.