Home / 13,113,783.57-18,089,756.34-9,199,367.70

Finding the Fourth Proportional to 13,113,783.57, 18,089,756.34 and 9,199,367.70

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Solution

The fourth proportional to 13,113,783.57, 18,089,756.34 and 9,199,367.70 is: 12,690,031.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113,783.57 : 18,089,756.34 = 9,199,367.70 : x
  2. Step 2: Convert to fraction form
    13,113,783.57/18,089,756.34 = 9,199,367.70/x
  3. Step 3: Cross multiply
    13,113,783.57x = 18,089,756.34 × 9,199,367.70
  4. Step 4: Simplify right side
    13,113,783.57x = 166,414,320,175,066.22
  5. Step 5: Solve for x
    x = 166,414,320,175,066.22/13,113,783.57
  6. Step 6: Final answer
    x = 12,690,031.01

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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.