Home / 853,786,588.56-1,280,755,504.44-240,376,128.72

Finding the Fourth Proportional to 853,786,588.56, 1,280,755,504.44 and 240,376,128.72

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Solution

The fourth proportional to 853,786,588.56, 1,280,755,504.44 and 240,376,128.72 is: 360,585,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,786,588.56 : 1,280,755,504.44 = 240,376,128.72 : x
  2. Step 2: Convert to fraction form
    853,786,588.56/1,280,755,504.44 = 240,376,128.72/x
  3. Step 3: Cross multiply
    853,786,588.56x = 1,280,755,504.44 × 240,376,128.72
  4. Step 4: Simplify right side
    853,786,588.56x = 307,863,049,994,117,952
  5. Step 5: Solve for x
    x = 307,863,049,994,117,952/853,786,588.56
  6. Step 6: Final answer
    x = 360,585,483.68

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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.