Home / 72,788,891.20-109,183,336.80-34,525,139.20

Finding the Fourth Proportional to 72,788,891.20, 109,183,336.80 and 34,525,139.20

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Solution

The fourth proportional to 72,788,891.20, 109,183,336.80 and 34,525,139.20 is: 51,787,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,788,891.20 : 109,183,336.80 = 34,525,139.20 : x
  2. Step 2: Convert to fraction form
    72,788,891.20/109,183,336.80 = 34,525,139.20/x
  3. Step 3: Cross multiply
    72,788,891.20x = 109,183,336.80 × 34,525,139.20
  4. Step 4: Simplify right side
    72,788,891.20x = 3,769,569,901,340,483
  5. Step 5: Solve for x
    x = 3,769,569,901,340,483/72,788,891.20
  6. Step 6: Final answer
    x = 51,787,708.80

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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.