Home / 21,289,941.79-29,380,097.12-11,500,384.41

Finding the Fourth Proportional to 21,289,941.79, 29,380,097.12 and 11,500,384.41

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Solution

The fourth proportional to 21,289,941.79, 29,380,097.12 and 11,500,384.41 is: 15,870,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,941.79 : 29,380,097.12 = 11,500,384.41 : x
  2. Step 2: Convert to fraction form
    21,289,941.79/29,380,097.12 = 11,500,384.41/x
  3. Step 3: Cross multiply
    21,289,941.79x = 29,380,097.12 × 11,500,384.41
  4. Step 4: Simplify right side
    21,289,941.79x = 337,882,410,911,884.88
  5. Step 5: Solve for x
    x = 337,882,410,911,884.88/21,289,941.79
  6. Step 6: Final answer
    x = 15,870,518.31

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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.