Home / 894,521,715.78-1,231,702,196.16-891,938,912.52

Finding the Fourth Proportional to 894,521,715.78, 1,231,702,196.16 and 891,938,912.52

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Solution

The fourth proportional to 894,521,715.78, 1,231,702,196.16 and 891,938,912.52 is: 1,228,145,832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,521,715.78 : 1,231,702,196.16 = 891,938,912.52 : x
  2. Step 2: Convert to fraction form
    894,521,715.78/1,231,702,196.16 = 891,938,912.52/x
  3. Step 3: Cross multiply
    894,521,715.78x = 1,231,702,196.16 × 891,938,912.52
  4. Step 4: Simplify right side
    894,521,715.78x = 1,098,603,117,391,446,144
  5. Step 5: Solve for x
    x = 1,098,603,117,391,446,144/894,521,715.78
  6. Step 6: Final answer
    x = 1,228,145,832.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.