Home / 131,058,009.60-196,587,014.40-128,507,092.80

Finding the Fourth Proportional to 131,058,009.60, 196,587,014.40 and 128,507,092.80

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Solution

The fourth proportional to 131,058,009.60, 196,587,014.40 and 128,507,092.80 is: 192,760,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,058,009.60 : 196,587,014.40 = 128,507,092.80 : x
  2. Step 2: Convert to fraction form
    131,058,009.60/196,587,014.40 = 128,507,092.80/x
  3. Step 3: Cross multiply
    131,058,009.60x = 196,587,014.40 × 128,507,092.80
  4. Step 4: Simplify right side
    131,058,009.60x = 25,262,825,702,775,736
  5. Step 5: Solve for x
    x = 25,262,825,702,775,736/131,058,009.60
  6. Step 6: Final answer
    x = 192,760,639.20

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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.