Home / 690,570,967.68-952,976,813.76-377,298,455.04

Finding the Fourth Proportional to 690,570,967.68, 952,976,813.76 and 377,298,455.04

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Solution

The fourth proportional to 690,570,967.68, 952,976,813.76 and 377,298,455.04 is: 520,665,791.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,570,967.68 : 952,976,813.76 = 377,298,455.04 : x
  2. Step 2: Convert to fraction form
    690,570,967.68/952,976,813.76 = 377,298,455.04/x
  3. Step 3: Cross multiply
    690,570,967.68x = 952,976,813.76 × 377,298,455.04
  4. Step 4: Simplify right side
    690,570,967.68x = 359,556,679,520,589,824
  5. Step 5: Solve for x
    x = 359,556,679,520,589,824/690,570,967.68
  6. Step 6: Final answer
    x = 520,665,791.57

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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.