Home / 18,689,970.70-28,004,775.45-10,578,825.10

Finding the Fourth Proportional to 18,689,970.70, 28,004,775.45 and 10,578,825.10

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Solution

The fourth proportional to 18,689,970.70, 28,004,775.45 and 10,578,825.10 is: 15,851,154.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,970.70 : 28,004,775.45 = 10,578,825.10 : x
  2. Step 2: Convert to fraction form
    18,689,970.70/28,004,775.45 = 10,578,825.10/x
  3. Step 3: Cross multiply
    18,689,970.70x = 28,004,775.45 × 10,578,825.10
  4. Step 4: Simplify right side
    18,689,970.70x = 296,257,621,450,323.75
  5. Step 5: Solve for x
    x = 296,257,621,450,323.75/18,689,970.70
  6. Step 6: Final answer
    x = 15,851,154.94

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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.