Home / 13,412,624.63-18,511,837.56-7,905,678.03

Finding the Fourth Proportional to 13,412,624.63, 18,511,837.56 and 7,905,678.03

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Solution

The fourth proportional to 13,412,624.63, 18,511,837.56 and 7,905,678.03 is: 10,911,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412,624.63 : 18,511,837.56 = 7,905,678.03 : x
  2. Step 2: Convert to fraction form
    13,412,624.63/18,511,837.56 = 7,905,678.03/x
  3. Step 3: Cross multiply
    13,412,624.63x = 18,511,837.56 × 7,905,678.03
  4. Step 4: Simplify right side
    13,412,624.63x = 146,348,627,493,020.81
  5. Step 5: Solve for x
    x = 146,348,627,493,020.81/13,412,624.63
  6. Step 6: Final answer
    x = 10,911,259.47

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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.