Home / 131,058,017.10-196,587,025.65-128,507,100.30

Finding the Fourth Proportional to 131,058,017.10, 196,587,025.65 and 128,507,100.30

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Solution

The fourth proportional to 131,058,017.10, 196,587,025.65 and 128,507,100.30 is: 192,760,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,058,017.10 : 196,587,025.65 = 128,507,100.30 : x
  2. Step 2: Convert to fraction form
    131,058,017.10/196,587,025.65 = 128,507,100.30/x
  3. Step 3: Cross multiply
    131,058,017.10x = 196,587,025.65 × 128,507,100.30
  4. Step 4: Simplify right side
    131,058,017.10x = 25,262,828,622,883,224
  5. Step 5: Solve for x
    x = 25,262,828,622,883,224/131,058,017.10
  6. Step 6: Final answer
    x = 192,760,650.45

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Similar ratio
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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.