Home / 12,983,855.70-19,475,783.55-5,409,837.30

Finding the Fourth Proportional to 12,983,855.70, 19,475,783.55 and 5,409,837.30

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Solution

The fourth proportional to 12,983,855.70, 19,475,783.55 and 5,409,837.30 is: 8,114,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983,855.70 : 19,475,783.55 = 5,409,837.30 : x
  2. Step 2: Convert to fraction form
    12,983,855.70/19,475,783.55 = 5,409,837.30/x
  3. Step 3: Cross multiply
    12,983,855.70x = 19,475,783.55 × 5,409,837.30
  4. Step 4: Simplify right side
    12,983,855.70x = 105,360,820,295,516.42
  5. Step 5: Solve for x
    x = 105,360,820,295,516.42/12,983,855.70
  6. Step 6: Final answer
    x = 8,114,755.95

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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.