Home / 13,749,009.80-18,982,259.70-12,455,083.40

Finding the Fourth Proportional to 13,749,009.80, 18,982,259.70 and 12,455,083.40

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Solution

The fourth proportional to 13,749,009.80, 18,982,259.70 and 12,455,083.40 is: 17,195,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749,009.80 : 18,982,259.70 = 12,455,083.40 : x
  2. Step 2: Convert to fraction form
    13,749,009.80/18,982,259.70 = 12,455,083.40/x
  3. Step 3: Cross multiply
    13,749,009.80x = 18,982,259.70 × 12,455,083.40
  4. Step 4: Simplify right side
    13,749,009.80x = 236,425,627,683,958.97
  5. Step 5: Solve for x
    x = 236,425,627,683,958.97/13,749,009.80
  6. Step 6: Final answer
    x = 17,195,829.45

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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.