Home / 18,769,443.85-28,154,259.53-6,638,918.48

Finding the Fourth Proportional to 18,769,443.85, 28,154,259.53 and 6,638,918.48

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Solution

The fourth proportional to 18,769,443.85, 28,154,259.53 and 6,638,918.48 is: 9,958,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769,443.85 : 28,154,259.53 = 6,638,918.48 : x
  2. Step 2: Convert to fraction form
    18,769,443.85/28,154,259.53 = 6,638,918.48/x
  3. Step 3: Cross multiply
    18,769,443.85x = 28,154,259.53 × 6,638,918.48
  4. Step 4: Simplify right side
    18,769,443.85x = 186,913,833,901,456.84
  5. Step 5: Solve for x
    x = 186,913,833,901,456.84/18,769,443.85
  6. Step 6: Final answer
    x = 9,958,410.88

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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.