Home / 40,887,317.80-61,330,976.70-12,137,890.60

Finding the Fourth Proportional to 40,887,317.80, 61,330,976.70 and 12,137,890.60

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Solution

The fourth proportional to 40,887,317.80, 61,330,976.70 and 12,137,890.60 is: 18,206,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,887,317.80 : 61,330,976.70 = 12,137,890.60 : x
  2. Step 2: Convert to fraction form
    40,887,317.80/61,330,976.70 = 12,137,890.60/x
  3. Step 3: Cross multiply
    40,887,317.80x = 61,330,976.70 × 12,137,890.60
  4. Step 4: Simplify right side
    40,887,317.80x = 744,428,685,575,749
  5. Step 5: Solve for x
    x = 744,428,685,575,749/40,887,317.80
  6. Step 6: Final answer
    x = 18,206,835.90

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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.