Home / 899,136,074.40-1,348,741,436.40-285,702,986.40

Finding the Fourth Proportional to 899,136,074.40, 1,348,741,436.40 and 285,702,986.40

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Solution

The fourth proportional to 899,136,074.40, 1,348,741,436.40 and 285,702,986.40 is: 428,566,339.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,136,074.40 : 1,348,741,436.40 = 285,702,986.40 : x
  2. Step 2: Convert to fraction form
    899,136,074.40/1,348,741,436.40 = 285,702,986.40/x
  3. Step 3: Cross multiply
    899,136,074.40x = 1,348,741,436.40 × 285,702,986.40
  4. Step 4: Simplify right side
    899,136,074.40x = 385,339,456,260,905,664
  5. Step 5: Solve for x
    x = 385,339,456,260,905,664/899,136,074.40
  6. Step 6: Final answer
    x = 428,566,339.66

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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.