Home / 89,638,779.36-123,699,835.60-54,828,912.72

Finding the Fourth Proportional to 89,638,779.36, 123,699,835.60 and 54,828,912.72

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Solution

The fourth proportional to 89,638,779.36, 123,699,835.60 and 54,828,912.72 is: 75,662,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,638,779.36 : 123,699,835.60 = 54,828,912.72 : x
  2. Step 2: Convert to fraction form
    89,638,779.36/123,699,835.60 = 54,828,912.72/x
  3. Step 3: Cross multiply
    89,638,779.36x = 123,699,835.60 × 54,828,912.72
  4. Step 4: Simplify right side
    89,638,779.36x = 6,782,327,489,590,748
  5. Step 5: Solve for x
    x = 6,782,327,489,590,748/89,638,779.36
  6. Step 6: Final answer
    x = 75,662,872.01

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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.