Home / 505,568,991,467.55-697,737,209,020.03-307,601,569,985.86

Finding the Fourth Proportional to 505,568,991,467.55, 697,737,209,020.03 and 307,601,569,985.86

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Solution

The fourth proportional to 505,568,991,467.55, 697,737,209,020.03 and 307,601,569,985.86 is: 424,521,805,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,568,991,467.55 : 697,737,209,020.03 = 307,601,569,985.86 : x
  2. Step 2: Convert to fraction form
    505,568,991,467.55/697,737,209,020.03 = 307,601,569,985.86/x
  3. Step 3: Cross multiply
    505,568,991,467.55x = 697,737,209,020.03 × 307,601,569,985.86
  4. Step 4: Simplify right side
    505,568,991,467.55x = 214,625,060,932,113,374,642,176
  5. Step 5: Solve for x
    x = 214,625,060,932,113,374,642,176/505,568,991,467.55
  6. Step 6: Final answer
    x = 424,521,805,241.87

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.