Home / 72,735,682.80-109,156,668.30-51,212,322.30

Finding the Fourth Proportional to 72,735,682.80, 109,156,668.30 and 51,212,322.30

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Solution

The fourth proportional to 72,735,682.80, 109,156,668.30 and 51,212,322.30 is: 76,855,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,735,682.80 : 109,156,668.30 = 51,212,322.30 : x
  2. Step 2: Convert to fraction form
    72,735,682.80/109,156,668.30 = 51,212,322.30/x
  3. Step 3: Cross multiply
    72,735,682.80x = 109,156,668.30 × 51,212,322.30
  4. Step 4: Simplify right side
    72,735,682.80x = 5,590,166,478,173,793
  5. Step 5: Solve for x
    x = 5,590,166,478,173,793/72,735,682.80
  6. Step 6: Final answer
    x = 76,855,901.57

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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.