Home / 10,285,137.66-15,427,837.70-7,089,405.78

Finding the Fourth Proportional to 10,285,137.66, 15,427,837.70 and 7,089,405.78

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Solution

The fourth proportional to 10,285,137.66, 15,427,837.70 and 7,089,405.78 is: 10,634,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285,137.66 : 15,427,837.70 = 7,089,405.78 : x
  2. Step 2: Convert to fraction form
    10,285,137.66/15,427,837.70 = 7,089,405.78/x
  3. Step 3: Cross multiply
    10,285,137.66x = 15,427,837.70 × 7,089,405.78
  4. Step 4: Simplify right side
    10,285,137.66x = 109,374,201,763,281.91
  5. Step 5: Solve for x
    x = 109,374,201,763,281.91/10,285,137.66
  6. Step 6: Final answer
    x = 10,634,199.11

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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.