Home / 266,975,998.80-400,463,998.20-105,396,939.60

Finding the Fourth Proportional to 266,975,998.80, 400,463,998.20 and 105,396,939.60

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Solution

The fourth proportional to 266,975,998.80, 400,463,998.20 and 105,396,939.60 is: 158,095,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,975,998.80 : 400,463,998.20 = 105,396,939.60 : x
  2. Step 2: Convert to fraction form
    266,975,998.80/400,463,998.20 = 105,396,939.60/x
  3. Step 3: Cross multiply
    266,975,998.80x = 400,463,998.20 × 105,396,939.60
  4. Step 4: Simplify right side
    266,975,998.80x = 42,207,679,830,259,904
  5. Step 5: Solve for x
    x = 42,207,679,830,259,904/266,975,998.80
  6. Step 6: Final answer
    x = 158,095,409.40

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1.5x scale

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.