Home / 899,135,997.40-1,348,741,320.90-285,702,909.40

Finding the Fourth Proportional to 899,135,997.40, 1,348,741,320.90 and 285,702,909.40

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Solution

The fourth proportional to 899,135,997.40, 1,348,741,320.90 and 285,702,909.40 is: 428,566,224.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,135,997.40 : 1,348,741,320.90 = 285,702,909.40 : x
  2. Step 2: Convert to fraction form
    899,135,997.40/1,348,741,320.90 = 285,702,909.40/x
  3. Step 3: Cross multiply
    899,135,997.40x = 1,348,741,320.90 × 285,702,909.40
  4. Step 4: Simplify right side
    899,135,997.40x = 385,339,319,409,129,024
  5. Step 5: Solve for x
    x = 385,339,319,409,129,024/899,135,997.40
  6. Step 6: Final answer
    x = 428,566,224.16

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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.