Home / 13,080,956.70-19,621,435.05-12,528,083.10

Finding the Fourth Proportional to 13,080,956.70, 19,621,435.05 and 12,528,083.10

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Solution

The fourth proportional to 13,080,956.70, 19,621,435.05 and 12,528,083.10 is: 18,792,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080,956.70 : 19,621,435.05 = 12,528,083.10 : x
  2. Step 2: Convert to fraction form
    13,080,956.70/19,621,435.05 = 12,528,083.10/x
  3. Step 3: Cross multiply
    13,080,956.70x = 19,621,435.05 × 12,528,083.10
  4. Step 4: Simplify right side
    13,080,956.70x = 245,818,968,847,652.66
  5. Step 5: Solve for x
    x = 245,818,968,847,652.66/13,080,956.70
  6. Step 6: Final answer
    x = 18,792,124.65

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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.