Home / 20,372,712.95-28,114,875.75-11,205,596.27

Finding the Fourth Proportional to 20,372,712.95, 28,114,875.75 and 11,205,596.27

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Solution

The fourth proportional to 20,372,712.95, 28,114,875.75 and 11,205,596.27 is: 15,464,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,712.95 : 28,114,875.75 = 11,205,596.27 : x
  2. Step 2: Convert to fraction form
    20,372,712.95/28,114,875.75 = 11,205,596.27/x
  3. Step 3: Cross multiply
    20,372,712.95x = 28,114,875.75 × 11,205,596.27
  4. Step 4: Simplify right side
    20,372,712.95x = 315,043,946,835,713.44
  5. Step 5: Solve for x
    x = 315,043,946,835,713.44/20,372,712.95
  6. Step 6: Final answer
    x = 15,464,015.40

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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.