Home / 21,855,106.20-30,163,994.46-13,035,122.76

Finding the Fourth Proportional to 21,855,106.20, 30,163,994.46 and 13,035,122.76

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Solution

The fourth proportional to 21,855,106.20, 30,163,994.46 and 13,035,122.76 is: 17,990,824.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,855,106.20 : 30,163,994.46 = 13,035,122.76 : x
  2. Step 2: Convert to fraction form
    21,855,106.20/30,163,994.46 = 13,035,122.76/x
  3. Step 3: Cross multiply
    21,855,106.20x = 30,163,994.46 × 13,035,122.76
  4. Step 4: Simplify right side
    21,855,106.20x = 393,191,370,718,059.94
  5. Step 5: Solve for x
    x = 393,191,370,718,059.94/21,855,106.20
  6. Step 6: Final answer
    x = 17,990,824.07

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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.