Home / 291,269,566.40-436,904,349.60-75,858,814.40

Finding the Fourth Proportional to 291,269,566.40, 436,904,349.60 and 75,858,814.40

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Solution

The fourth proportional to 291,269,566.40, 436,904,349.60 and 75,858,814.40 is: 113,788,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,269,566.40 : 436,904,349.60 = 75,858,814.40 : x
  2. Step 2: Convert to fraction form
    291,269,566.40/436,904,349.60 = 75,858,814.40/x
  3. Step 3: Cross multiply
    291,269,566.40x = 436,904,349.60 × 75,858,814.40
  4. Step 4: Simplify right side
    291,269,566.40x = 33,143,045,966,859,120
  5. Step 5: Solve for x
    x = 33,143,045,966,859,120/291,269,566.40
  6. Step 6: Final answer
    x = 113,788,221.60

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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.