Home / 149,781,840.64-206,699,220.15-83,702,338.97

Finding the Fourth Proportional to 149,781,840.64, 206,699,220.15 and 83,702,338.97

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Solution

The fourth proportional to 149,781,840.64, 206,699,220.15 and 83,702,338.97 is: 115,509,384.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,781,840.64 : 206,699,220.15 = 83,702,338.97 : x
  2. Step 2: Convert to fraction form
    149,781,840.64/206,699,220.15 = 83,702,338.97/x
  3. Step 3: Cross multiply
    149,781,840.64x = 206,699,220.15 × 83,702,338.97
  4. Step 4: Simplify right side
    149,781,840.64x = 17,301,208,190,172,122
  5. Step 5: Solve for x
    x = 17,301,208,190,172,122/149,781,840.64
  6. Step 6: Final answer
    x = 115,509,384.29

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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.