Home / 12,689,615.37-19,041,621.99-6,853,728.90

Finding the Fourth Proportional to 12,689,615.37, 19,041,621.99 and 6,853,728.90

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Solution

The fourth proportional to 12,689,615.37, 19,041,621.99 and 6,853,728.90 is: 10,284,481.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689,615.37 : 19,041,621.99 = 6,853,728.90 : x
  2. Step 2: Convert to fraction form
    12,689,615.37/19,041,621.99 = 6,853,728.90/x
  3. Step 3: Cross multiply
    12,689,615.37x = 19,041,621.99 × 6,853,728.90
  4. Step 4: Simplify right side
    12,689,615.37x = 130,506,114,935,738.50
  5. Step 5: Solve for x
    x = 130,506,114,935,738.50/12,689,615.37
  6. Step 6: Final answer
    x = 10,284,481.53

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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.