Home / 85,638,277.10-128,420,090.85-34,503,301.10

Finding the Fourth Proportional to 85,638,277.10, 128,420,090.85 and 34,503,301.10

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Solution

The fourth proportional to 85,638,277.10, 128,420,090.85 and 34,503,301.10 is: 51,739,913.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,638,277.10 : 128,420,090.85 = 34,503,301.10 : x
  2. Step 2: Convert to fraction form
    85,638,277.10/128,420,090.85 = 34,503,301.10/x
  3. Step 3: Cross multiply
    85,638,277.10x = 128,420,090.85 × 34,503,301.10
  4. Step 4: Simplify right side
    85,638,277.10x = 4,430,917,061,886,905
  5. Step 5: Solve for x
    x = 4,430,917,061,886,905/85,638,277.10
  6. Step 6: Final answer
    x = 51,739,913.65

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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.