Home / 339,912,036.80-509,868,055.20-313,835,998.40

Finding the Fourth Proportional to 339,912,036.80, 509,868,055.20 and 313,835,998.40

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Solution

The fourth proportional to 339,912,036.80, 509,868,055.20 and 313,835,998.40 is: 470,753,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,912,036.80 : 509,868,055.20 = 313,835,998.40 : x
  2. Step 2: Convert to fraction form
    339,912,036.80/509,868,055.20 = 313,835,998.40/x
  3. Step 3: Cross multiply
    339,912,036.80x = 509,868,055.20 × 313,835,998.40
  4. Step 4: Simplify right side
    339,912,036.80x = 160,014,950,155,958,304
  5. Step 5: Solve for x
    x = 160,014,950,155,958,304/339,912,036.80
  6. Step 6: Final answer
    x = 470,753,997.60

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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.