Home / 13,268,138.23-18,307,001.11-7,464,802.51

Finding the Fourth Proportional to 13,268,138.23, 18,307,001.11 and 7,464,802.51

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Solution

The fourth proportional to 13,268,138.23, 18,307,001.11 and 7,464,802.51 is: 10,299,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,138.23 : 18,307,001.11 = 7,464,802.51 : x
  2. Step 2: Convert to fraction form
    13,268,138.23/18,307,001.11 = 7,464,802.51/x
  3. Step 3: Cross multiply
    13,268,138.23x = 18,307,001.11 × 7,464,802.51
  4. Step 4: Simplify right side
    13,268,138.23x = 136,658,147,751,742.16
  5. Step 5: Solve for x
    x = 136,658,147,751,742.16/13,268,138.23
  6. Step 6: Final answer
    x = 10,299,722.95

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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.