Home / 899,136,008.40-1,348,741,337.40-285,702,920.40

Finding the Fourth Proportional to 899,136,008.40, 1,348,741,337.40 and 285,702,920.40

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Solution

The fourth proportional to 899,136,008.40, 1,348,741,337.40 and 285,702,920.40 is: 428,566,240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,136,008.40 : 1,348,741,337.40 = 285,702,920.40 : x
  2. Step 2: Convert to fraction form
    899,136,008.40/1,348,741,337.40 = 285,702,920.40/x
  3. Step 3: Cross multiply
    899,136,008.40x = 1,348,741,337.40 × 285,702,920.40
  4. Step 4: Simplify right side
    899,136,008.40x = 385,339,338,959,381,760
  5. Step 5: Solve for x
    x = 385,339,338,959,381,760/899,136,008.40
  6. Step 6: Final answer
    x = 428,566,240.66

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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.