Home / 13,758,048.40-20,637,072.60-7,786,080.40

Finding the Fourth Proportional to 13,758,048.40, 20,637,072.60 and 7,786,080.40

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Solution

The fourth proportional to 13,758,048.40, 20,637,072.60 and 7,786,080.40 is: 11,679,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758,048.40 : 20,637,072.60 = 7,786,080.40 : x
  2. Step 2: Convert to fraction form
    13,758,048.40/20,637,072.60 = 7,786,080.40/x
  3. Step 3: Cross multiply
    13,758,048.40x = 20,637,072.60 × 7,786,080.40
  4. Step 4: Simplify right side
    13,758,048.40x = 160,681,906,484,237.06
  5. Step 5: Solve for x
    x = 160,681,906,484,237.06/13,758,048.40
  6. Step 6: Final answer
    x = 11,679,120.60

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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.