Home / 291,073,403.60-436,610,105.40-285,333,840.80

Finding the Fourth Proportional to 291,073,403.60, 436,610,105.40 and 285,333,840.80

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Solution

The fourth proportional to 291,073,403.60, 436,610,105.40 and 285,333,840.80 is: 428,000,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,073,403.60 : 436,610,105.40 = 285,333,840.80 : x
  2. Step 2: Convert to fraction form
    291,073,403.60/436,610,105.40 = 285,333,840.80/x
  3. Step 3: Cross multiply
    291,073,403.60x = 436,610,105.40 × 285,333,840.80
  4. Step 4: Simplify right side
    291,073,403.60x = 124,579,638,305,874,816
  5. Step 5: Solve for x
    x = 124,579,638,305,874,816/291,073,403.60
  6. Step 6: Final answer
    x = 428,000,761.20

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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.