Home / 130,728,469.80-196,092,704.70-86,890,492.20

Finding the Fourth Proportional to 130,728,469.80, 196,092,704.70 and 86,890,492.20

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Solution

The fourth proportional to 130,728,469.80, 196,092,704.70 and 86,890,492.20 is: 130,335,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,728,469.80 : 196,092,704.70 = 86,890,492.20 : x
  2. Step 2: Convert to fraction form
    130,728,469.80/196,092,704.70 = 86,890,492.20/x
  3. Step 3: Cross multiply
    130,728,469.80x = 196,092,704.70 × 86,890,492.20
  4. Step 4: Simplify right side
    130,728,469.80x = 17,038,591,628,212,252
  5. Step 5: Solve for x
    x = 17,038,591,628,212,252/130,728,469.80
  6. Step 6: Final answer
    x = 130,335,738.30

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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.