Home / 12,405,802.40-17,120,017.07-6,899,057.09

Finding the Fourth Proportional to 12,405,802.40, 17,120,017.07 and 6,899,057.09

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Solution

The fourth proportional to 12,405,802.40, 17,120,017.07 and 6,899,057.09 is: 9,520,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405,802.40 : 17,120,017.07 = 6,899,057.09 : x
  2. Step 2: Convert to fraction form
    12,405,802.40/17,120,017.07 = 6,899,057.09/x
  3. Step 3: Cross multiply
    12,405,802.40x = 17,120,017.07 × 6,899,057.09
  4. Step 4: Simplify right side
    12,405,802.40x = 118,111,975,147,704.53
  5. Step 5: Solve for x
    x = 118,111,975,147,704.53/12,405,802.40
  6. Step 6: Final answer
    x = 9,520,704.21

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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.