Home / 899,136,003.90-1,348,741,330.65-285,702,915.90

Finding the Fourth Proportional to 899,136,003.90, 1,348,741,330.65 and 285,702,915.90

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Solution

The fourth proportional to 899,136,003.90, 1,348,741,330.65 and 285,702,915.90 is: 428,566,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,136,003.90 : 1,348,741,330.65 = 285,702,915.90 : x
  2. Step 2: Convert to fraction form
    899,136,003.90/1,348,741,330.65 = 285,702,915.90/x
  3. Step 3: Cross multiply
    899,136,003.90x = 1,348,741,330.65 × 285,702,915.90
  4. Step 4: Simplify right side
    899,136,003.90x = 385,339,330,961,551,040
  5. Step 5: Solve for x
    x = 385,339,330,961,551,040/899,136,003.90
  6. Step 6: Final answer
    x = 428,566,233.91

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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.