Home / 10,285,118.78-15,427,809.38-7,089,386.90

Finding the Fourth Proportional to 10,285,118.78, 15,427,809.38 and 7,089,386.90

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Solution

The fourth proportional to 10,285,118.78, 15,427,809.38 and 7,089,386.90 is: 10,634,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285,118.78 : 15,427,809.38 = 7,089,386.90 : x
  2. Step 2: Convert to fraction form
    10,285,118.78/15,427,809.38 = 7,089,386.90/x
  3. Step 3: Cross multiply
    10,285,118.78x = 15,427,809.38 × 7,089,386.90
  4. Step 4: Simplify right side
    10,285,118.78x = 109,373,709,654,853.53
  5. Step 5: Solve for x
    x = 109,373,709,654,853.53/10,285,118.78
  6. Step 6: Final answer
    x = 10,634,170.79

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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.