Home / 131,058,021.60-196,587,032.40-128,507,104.80

Finding the Fourth Proportional to 131,058,021.60, 196,587,032.40 and 128,507,104.80

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Solution

The fourth proportional to 131,058,021.60, 196,587,032.40 and 128,507,104.80 is: 192,760,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,058,021.60 : 196,587,032.40 = 128,507,104.80 : x
  2. Step 2: Convert to fraction form
    131,058,021.60/196,587,032.40 = 128,507,104.80/x
  3. Step 3: Cross multiply
    131,058,021.60x = 196,587,032.40 × 128,507,104.80
  4. Step 4: Simplify right side
    131,058,021.60x = 25,262,830,374,947,796
  5. Step 5: Solve for x
    x = 25,262,830,374,947,796/131,058,021.60
  6. Step 6: Final answer
    x = 192,760,657.20

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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.