Home / 641,456,163.51-885,209,505.39-348,100,731.51

Finding the Fourth Proportional to 641,456,163.51, 885,209,505.39 and 348,100,731.51

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Solution

The fourth proportional to 641,456,163.51, 885,209,505.39 and 348,100,731.51 is: 480,379,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,456,163.51 : 885,209,505.39 = 348,100,731.51 : x
  2. Step 2: Convert to fraction form
    641,456,163.51/885,209,505.39 = 348,100,731.51/x
  3. Step 3: Cross multiply
    641,456,163.51x = 885,209,505.39 × 348,100,731.51
  4. Step 4: Simplify right side
    641,456,163.51x = 308,142,076,365,864,256
  5. Step 5: Solve for x
    x = 308,142,076,365,864,256/641,456,163.51
  6. Step 6: Final answer
    x = 480,379,009.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.