Home / 13,431,822.90-18,535,978.02-7,630,922.85

Finding the Fourth Proportional to 13,431,822.90, 18,535,978.02 and 7,630,922.85

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Solution

The fourth proportional to 13,431,822.90, 18,535,978.02 and 7,630,922.85 is: 10,530,708.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,822.90 : 18,535,978.02 = 7,630,922.85 : x
  2. Step 2: Convert to fraction form
    13,431,822.90/18,535,978.02 = 7,630,922.85/x
  3. Step 3: Cross multiply
    13,431,822.90x = 18,535,978.02 × 7,630,922.85
  4. Step 4: Simplify right side
    13,431,822.90x = 141,446,618,219,915.75
  5. Step 5: Solve for x
    x = 141,446,618,219,915.75/13,431,822.90
  6. Step 6: Final answer
    x = 10,530,708.99

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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.