Home / 266,936,769.60-400,405,154.40-85,202,318.40

Finding the Fourth Proportional to 266,936,769.60, 400,405,154.40 and 85,202,318.40

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Solution

The fourth proportional to 266,936,769.60, 400,405,154.40 and 85,202,318.40 is: 127,803,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,936,769.60 : 400,405,154.40 = 85,202,318.40 : x
  2. Step 2: Convert to fraction form
    266,936,769.60/400,405,154.40 = 85,202,318.40/x
  3. Step 3: Cross multiply
    266,936,769.60x = 400,405,154.40 × 85,202,318.40
  4. Step 4: Simplify right side
    266,936,769.60x = 34,115,447,454,189,960
  5. Step 5: Solve for x
    x = 34,115,447,454,189,960/266,936,769.60
  6. Step 6: Final answer
    x = 127,803,477.60

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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.