Home / 13,606,621.60-20,381,938.80-6,878,826.40

Finding the Fourth Proportional to 13,606,621.60, 20,381,938.80 and 6,878,826.40

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Solution

The fourth proportional to 13,606,621.60, 20,381,938.80 and 6,878,826.40 is: 10,304,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606,621.60 : 20,381,938.80 = 6,878,826.40 : x
  2. Step 2: Convert to fraction form
    13,606,621.60/20,381,938.80 = 6,878,826.40/x
  3. Step 3: Cross multiply
    13,606,621.60x = 20,381,938.80 × 6,878,826.40
  4. Step 4: Simplify right side
    13,606,621.60x = 140,203,818,700,624.33
  5. Step 5: Solve for x
    x = 140,203,818,700,624.33/13,606,621.60
  6. Step 6: Final answer
    x = 10,304,087.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.