Home / 13,080,917.70-19,621,376.55-12,528,044.10

Finding the Fourth Proportional to 13,080,917.70, 19,621,376.55 and 12,528,044.10

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Solution

The fourth proportional to 13,080,917.70, 19,621,376.55 and 12,528,044.10 is: 18,792,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080,917.70 : 19,621,376.55 = 12,528,044.10 : x
  2. Step 2: Convert to fraction form
    13,080,917.70/19,621,376.55 = 12,528,044.10/x
  3. Step 3: Cross multiply
    13,080,917.70x = 19,621,376.55 × 12,528,044.10
  4. Step 4: Simplify right side
    13,080,917.70x = 245,817,470,721,105.84
  5. Step 5: Solve for x
    x = 245,817,470,721,105.84/13,080,917.70
  6. Step 6: Final answer
    x = 18,792,066.15

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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.