Home / 210,145,469.80-315,218,204.70-129,523,901.80

Finding the Fourth Proportional to 210,145,469.80, 315,218,204.70 and 129,523,901.80

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Solution

The fourth proportional to 210,145,469.80, 315,218,204.70 and 129,523,901.80 is: 194,285,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,145,469.80 : 315,218,204.70 = 129,523,901.80 : x
  2. Step 2: Convert to fraction form
    210,145,469.80/315,218,204.70 = 129,523,901.80/x
  3. Step 3: Cross multiply
    210,145,469.80x = 315,218,204.70 × 129,523,901.80
  4. Step 4: Simplify right side
    210,145,469.80x = 40,828,291,791,135,096
  5. Step 5: Solve for x
    x = 40,828,291,791,135,096/210,145,469.80
  6. Step 6: Final answer
    x = 194,285,852.70

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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.