Home / 22,409,321.04-30,924,932.84-12,991,947.57

Finding the Fourth Proportional to 22,409,321.04, 30,924,932.84 and 12,991,947.57

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Solution

The fourth proportional to 22,409,321.04, 30,924,932.84 and 12,991,947.57 is: 17,928,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,409,321.04 : 30,924,932.84 = 12,991,947.57 : x
  2. Step 2: Convert to fraction form
    22,409,321.04/30,924,932.84 = 12,991,947.57/x
  3. Step 3: Cross multiply
    22,409,321.04x = 30,924,932.84 × 12,991,947.57
  4. Step 4: Simplify right side
    22,409,321.04x = 401,775,106,095,531.06
  5. Step 5: Solve for x
    x = 401,775,106,095,531.06/22,409,321.04
  6. Step 6: Final answer
    x = 17,928,928.12

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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.