Home / 30,805,439.14-42,509,889.36-16,864,121.56

Finding the Fourth Proportional to 30,805,439.14, 42,509,889.36 and 16,864,121.56

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Solution

The fourth proportional to 30,805,439.14, 42,509,889.36 and 16,864,121.56 is: 23,271,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,805,439.14 : 42,509,889.36 = 16,864,121.56 : x
  2. Step 2: Convert to fraction form
    30,805,439.14/42,509,889.36 = 16,864,121.56/x
  3. Step 3: Cross multiply
    30,805,439.14x = 42,509,889.36 × 16,864,121.56
  4. Step 4: Simplify right side
    30,805,439.14x = 716,891,941,669,190.50
  5. Step 5: Solve for x
    x = 716,891,941,669,190.50/30,805,439.14
  6. Step 6: Final answer
    x = 23,271,602.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.