Home / 72,006,403.33-107,965,866.21-28,234,722.72

Finding the Fourth Proportional to 72,006,403.33, 107,965,866.21 and 28,234,722.72

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Solution

The fourth proportional to 72,006,403.33, 107,965,866.21 and 28,234,722.72 is: 42,334,933.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006,403.33 : 107,965,866.21 = 28,234,722.72 : x
  2. Step 2: Convert to fraction form
    72,006,403.33/107,965,866.21 = 28,234,722.72/x
  3. Step 3: Cross multiply
    72,006,403.33x = 107,965,866.21 × 28,234,722.72
  4. Step 4: Simplify right side
    72,006,403.33x = 3,048,386,295,855,834
  5. Step 5: Solve for x
    x = 3,048,386,295,855,834/72,006,403.33
  6. Step 6: Final answer
    x = 42,334,933.49

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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.