Home / 15,004,533.22-20,705,985.93-8,478,022.55

Finding the Fourth Proportional to 15,004,533.22, 20,705,985.93 and 8,478,022.55

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Solution

The fourth proportional to 15,004,533.22, 20,705,985.93 and 8,478,022.55 is: 11,699,518.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,533.22 : 20,705,985.93 = 8,478,022.55 : x
  2. Step 2: Convert to fraction form
    15,004,533.22/20,705,985.93 = 8,478,022.55/x
  3. Step 3: Cross multiply
    15,004,533.22x = 20,705,985.93 × 8,478,022.55
  4. Step 4: Simplify right side
    15,004,533.22x = 175,545,815,713,643.44
  5. Step 5: Solve for x
    x = 175,545,815,713,643.44/15,004,533.22
  6. Step 6: Final answer
    x = 11,699,518.61

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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.