Home / 266,939,474.40-400,409,211.60-209,608,581.60

Finding the Fourth Proportional to 266,939,474.40, 400,409,211.60 and 209,608,581.60

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Solution

The fourth proportional to 266,939,474.40, 400,409,211.60 and 209,608,581.60 is: 314,412,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,939,474.40 : 400,409,211.60 = 209,608,581.60 : x
  2. Step 2: Convert to fraction form
    266,939,474.40/400,409,211.60 = 209,608,581.60/x
  3. Step 3: Cross multiply
    266,939,474.40x = 400,409,211.60 × 209,608,581.60
  4. Step 4: Simplify right side
    266,939,474.40x = 83,929,206,903,050,272
  5. Step 5: Solve for x
    x = 83,929,206,903,050,272/266,939,474.40
  6. Step 6: Final answer
    x = 314,412,872.40

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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.