Home / 74,887,431.80-112,331,147.70-42,526,830.20

Finding the Fourth Proportional to 74,887,431.80, 112,331,147.70 and 42,526,830.20

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Solution

The fourth proportional to 74,887,431.80, 112,331,147.70 and 42,526,830.20 is: 63,790,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,431.80 : 112,331,147.70 = 42,526,830.20 : x
  2. Step 2: Convert to fraction form
    74,887,431.80/112,331,147.70 = 42,526,830.20/x
  3. Step 3: Cross multiply
    74,887,431.80x = 112,331,147.70 × 42,526,830.20
  4. Step 4: Simplify right side
    74,887,431.80x = 4,777,087,644,409,021
  5. Step 5: Solve for x
    x = 4,777,087,644,409,021/74,887,431.80
  6. Step 6: Final answer
    x = 63,790,245.30

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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.