Home / 13,360,369.70-18,431,829.50-8,129,184.32

Finding the Fourth Proportional to 13,360,369.70, 18,431,829.50 and 8,129,184.32

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Solution

The fourth proportional to 13,360,369.70, 18,431,829.50 and 8,129,184.32 is: 11,214,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360,369.70 : 18,431,829.50 = 8,129,184.32 : x
  2. Step 2: Convert to fraction form
    13,360,369.70/18,431,829.50 = 8,129,184.32/x
  3. Step 3: Cross multiply
    13,360,369.70x = 18,431,829.50 × 8,129,184.32
  4. Step 4: Simplify right side
    13,360,369.70x = 149,835,739,307,794.69
  5. Step 5: Solve for x
    x = 149,835,739,307,794.69/13,360,369.70
  6. Step 6: Final answer
    x = 11,214,939.60

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1.5x scale

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.