Home / 13,683,659.52-18,870,975.36-11,749,313.28

Finding the Fourth Proportional to 13,683,659.52, 18,870,975.36 and 11,749,313.28

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Solution

The fourth proportional to 13,683,659.52, 18,870,975.36 and 11,749,313.28 is: 16,203,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683,659.52 : 18,870,975.36 = 11,749,313.28 : x
  2. Step 2: Convert to fraction form
    13,683,659.52/18,870,975.36 = 11,749,313.28/x
  3. Step 3: Cross multiply
    13,683,659.52x = 18,870,975.36 × 11,749,313.28
  4. Step 4: Simplify right side
    13,683,659.52x = 221,721,001,403,800.75
  5. Step 5: Solve for x
    x = 221,721,001,403,800.75/13,683,659.52
  6. Step 6: Final answer
    x = 16,203,341.01

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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.