Home / 18,689,984.20-28,004,795.70-10,578,838.60

Finding the Fourth Proportional to 18,689,984.20, 28,004,795.70 and 10,578,838.60

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Solution

The fourth proportional to 18,689,984.20, 28,004,795.70 and 10,578,838.60 is: 15,851,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,984.20 : 28,004,795.70 = 10,578,838.60 : x
  2. Step 2: Convert to fraction form
    18,689,984.20/28,004,795.70 = 10,578,838.60/x
  3. Step 3: Cross multiply
    18,689,984.20x = 28,004,795.70 × 10,578,838.60
  4. Step 4: Simplify right side
    18,689,984.20x = 296,258,213,736,274
  5. Step 5: Solve for x
    x = 296,258,213,736,274/18,689,984.20
  6. Step 6: Final answer
    x = 15,851,175.18

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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.