Home / 551,188,379.80-826,782,569.70-455,528,999.80

Finding the Fourth Proportional to 551,188,379.80, 826,782,569.70 and 455,528,999.80

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Solution

The fourth proportional to 551,188,379.80, 826,782,569.70 and 455,528,999.80 is: 683,293,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,188,379.80 : 826,782,569.70 = 455,528,999.80 : x
  2. Step 2: Convert to fraction form
    551,188,379.80/826,782,569.70 = 455,528,999.80/x
  3. Step 3: Cross multiply
    551,188,379.80x = 826,782,569.70 × 455,528,999.80
  4. Step 4: Simplify right side
    551,188,379.80x = 376,623,437,027,514,816
  5. Step 5: Solve for x
    x = 376,623,437,027,514,816/551,188,379.80
  6. Step 6: Final answer
    x = 683,293,499.70

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1.5x scale

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.