Home / 430,970,721.83-646,456,091.33-103,446,235

Finding the Fourth Proportional to 430,970,721.83, 646,456,091.33 and 103,446,235

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Solution

The fourth proportional to 430,970,721.83, 646,456,091.33 and 103,446,235 is: 155,169,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,970,721.83 : 646,456,091.33 = 103,446,235 : x
  2. Step 2: Convert to fraction form
    430,970,721.83/646,456,091.33 = 103,446,235/x
  3. Step 3: Cross multiply
    430,970,721.83x = 646,456,091.33 × 103,446,235
  4. Step 4: Simplify right side
    430,970,721.83x = 66,873,448,740,904,648
  5. Step 5: Solve for x
    x = 66,873,448,740,904,648/430,970,721.83
  6. Step 6: Final answer
    x = 155,169,354.56

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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.