Home / 402,505,237.80-603,438,992.10-220,752,415.80

Finding the Fourth Proportional to 402,505,237.80, 603,438,992.10 and 220,752,415.80

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Solution

The fourth proportional to 402,505,237.80, 603,438,992.10 and 220,752,415.80 is: 330,953,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,505,237.80 : 603,438,992.10 = 220,752,415.80 : x
  2. Step 2: Convert to fraction form
    402,505,237.80/603,438,992.10 = 220,752,415.80/x
  3. Step 3: Cross multiply
    402,505,237.80x = 603,438,992.10 × 220,752,415.80
  4. Step 4: Simplify right side
    402,505,237.80x = 133,210,615,293,992,128
  5. Step 5: Solve for x
    x = 133,210,615,293,992,128/402,505,237.80
  6. Step 6: Final answer
    x = 330,953,743.66

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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.