Home / 20,362,420.09-28,099,421.80-11,194,992.37

Finding the Fourth Proportional to 20,362,420.09, 28,099,421.80 and 11,194,992.37

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Solution

The fourth proportional to 20,362,420.09, 28,099,421.80 and 11,194,992.37 is: 15,448,694.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362,420.09 : 28,099,421.80 = 11,194,992.37 : x
  2. Step 2: Convert to fraction form
    20,362,420.09/28,099,421.80 = 11,194,992.37/x
  3. Step 3: Cross multiply
    20,362,420.09x = 28,099,421.80 × 11,194,992.37
  4. Step 4: Simplify right side
    20,362,420.09x = 314,572,812,652,411.62
  5. Step 5: Solve for x
    x = 314,572,812,652,411.62/20,362,420.09
  6. Step 6: Final answer
    x = 15,448,694.77

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1.5x scale

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.