Home / 85,638,278.60-128,420,093.10-34,503,302.60

Finding the Fourth Proportional to 85,638,278.60, 128,420,093.10 and 34,503,302.60

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Solution

The fourth proportional to 85,638,278.60, 128,420,093.10 and 34,503,302.60 is: 51,739,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,638,278.60 : 128,420,093.10 = 34,503,302.60 : x
  2. Step 2: Convert to fraction form
    85,638,278.60/128,420,093.10 = 34,503,302.60/x
  3. Step 3: Cross multiply
    85,638,278.60x = 128,420,093.10 × 34,503,302.60
  4. Step 4: Simplify right side
    85,638,278.60x = 4,430,917,332,149,472
  5. Step 5: Solve for x
    x = 4,430,917,332,149,472/85,638,278.60
  6. Step 6: Final answer
    x = 51,739,915.89

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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.