Home / 21,004,811.70-31,507,217.55-17,645,579.70

Finding the Fourth Proportional to 21,004,811.70, 31,507,217.55 and 17,645,579.70

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Solution

The fourth proportional to 21,004,811.70, 31,507,217.55 and 17,645,579.70 is: 26,468,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,811.70 : 31,507,217.55 = 17,645,579.70 : x
  2. Step 2: Convert to fraction form
    21,004,811.70/31,507,217.55 = 17,645,579.70/x
  3. Step 3: Cross multiply
    21,004,811.70x = 31,507,217.55 × 17,645,579.70
  4. Step 4: Simplify right side
    21,004,811.70x = 555,963,118,403,763.75
  5. Step 5: Solve for x
    x = 555,963,118,403,763.75/21,004,811.70
  6. Step 6: Final answer
    x = 26,468,369.55

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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.