Home / 421,277,474.50-631,976,660.43-130,170,016.06

Finding the Fourth Proportional to 421,277,474.50, 631,976,660.43 and 130,170,016.06

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Solution

The fourth proportional to 421,277,474.50, 631,976,660.43 and 130,170,016.06 is: 195,273,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,277,474.50 : 631,976,660.43 = 130,170,016.06 : x
  2. Step 2: Convert to fraction form
    421,277,474.50/631,976,660.43 = 130,170,016.06/x
  3. Step 3: Cross multiply
    421,277,474.50x = 631,976,660.43 × 130,170,016.06
  4. Step 4: Simplify right side
    421,277,474.50x = 82,264,412,035,648,880
  5. Step 5: Solve for x
    x = 82,264,412,035,648,880/421,277,474.50
  6. Step 6: Final answer
    x = 195,273,702.05

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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.