Home / 131,058,229.80-196,713,315.90-66,435,004.20

Finding the Fourth Proportional to 131,058,229.80, 196,713,315.90 and 66,435,004.20

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Solution

The fourth proportional to 131,058,229.80, 196,713,315.90 and 66,435,004.20 is: 99,716,362.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,058,229.80 : 196,713,315.90 = 66,435,004.20 : x
  2. Step 2: Convert to fraction form
    131,058,229.80/196,713,315.90 = 66,435,004.20/x
  3. Step 3: Cross multiply
    131,058,229.80x = 196,713,315.90 × 66,435,004.20
  4. Step 4: Simplify right side
    131,058,229.80x = 13,068,649,968,012,428
  5. Step 5: Solve for x
    x = 13,068,649,968,012,428/131,058,229.80
  6. Step 6: Final answer
    x = 99,716,362.63

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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.