Home / 339,957,777.60-509,936,666.40-217,513,771.20

Finding the Fourth Proportional to 339,957,777.60, 509,936,666.40 and 217,513,771.20

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Solution

The fourth proportional to 339,957,777.60, 509,936,666.40 and 217,513,771.20 is: 326,270,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,957,777.60 : 509,936,666.40 = 217,513,771.20 : x
  2. Step 2: Convert to fraction form
    339,957,777.60/509,936,666.40 = 217,513,771.20/x
  3. Step 3: Cross multiply
    339,957,777.60x = 509,936,666.40 × 217,513,771.20
  4. Step 4: Simplify right side
    339,957,777.60x = 110,918,247,381,820,320
  5. Step 5: Solve for x
    x = 110,918,247,381,820,320/339,957,777.60
  6. Step 6: Final answer
    x = 326,270,656.80

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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.