Home / 131,058,019.60-196,587,029.40-128,507,102.80

Finding the Fourth Proportional to 131,058,019.60, 196,587,029.40 and 128,507,102.80

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Solution

The fourth proportional to 131,058,019.60, 196,587,029.40 and 128,507,102.80 is: 192,760,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,058,019.60 : 196,587,029.40 = 128,507,102.80 : x
  2. Step 2: Convert to fraction form
    131,058,019.60/196,587,029.40 = 128,507,102.80/x
  3. Step 3: Cross multiply
    131,058,019.60x = 196,587,029.40 × 128,507,102.80
  4. Step 4: Simplify right side
    131,058,019.60x = 25,262,829,596,252,424
  5. Step 5: Solve for x
    x = 25,262,829,596,252,424/131,058,019.60
  6. Step 6: Final answer
    x = 192,760,654.20

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1.5x scale

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.