Home / 509,315,390.58-763,972,131.60-159,588,231.51

Finding the Fourth Proportional to 509,315,390.58, 763,972,131.60 and 159,588,231.51

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Solution

The fourth proportional to 509,315,390.58, 763,972,131.60 and 159,588,231.51 is: 239,382,048.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,315,390.58 : 763,972,131.60 = 159,588,231.51 : x
  2. Step 2: Convert to fraction form
    509,315,390.58/763,972,131.60 = 159,588,231.51/x
  3. Step 3: Cross multiply
    509,315,390.58x = 763,972,131.60 × 159,588,231.51
  4. Step 4: Simplify right side
    509,315,390.58x = 121,920,961,404,968,976
  5. Step 5: Solve for x
    x = 121,920,961,404,968,976/509,315,390.58
  6. Step 6: Final answer
    x = 239,382,048.26

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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.