Home / 291,072,665.60-436,608,998.40-285,333,102.80

Finding the Fourth Proportional to 291,072,665.60, 436,608,998.40 and 285,333,102.80

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Solution

The fourth proportional to 291,072,665.60, 436,608,998.40 and 285,333,102.80 is: 427,999,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,072,665.60 : 436,608,998.40 = 285,333,102.80 : x
  2. Step 2: Convert to fraction form
    291,072,665.60/436,608,998.40 = 285,333,102.80/x
  3. Step 3: Cross multiply
    291,072,665.60x = 436,608,998.40 × 285,333,102.80
  4. Step 4: Simplify right side
    291,072,665.60x = 124,579,000,223,872,240
  5. Step 5: Solve for x
    x = 124,579,000,223,872,240/291,072,665.60
  6. Step 6: Final answer
    x = 427,999,654.20

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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.