Home / 15,492,629.66-21,379,399.67-8,427,988.67

Finding the Fourth Proportional to 15,492,629.66, 21,379,399.67 and 8,427,988.67

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Solution

The fourth proportional to 15,492,629.66, 21,379,399.67 and 8,427,988.67 is: 11,630,390.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,492,629.66 : 21,379,399.67 = 8,427,988.67 : x
  2. Step 2: Convert to fraction form
    15,492,629.66/21,379,399.67 = 8,427,988.67/x
  3. Step 3: Cross multiply
    15,492,629.66x = 21,379,399.67 × 8,427,988.67
  4. Step 4: Simplify right side
    15,492,629.66x = 180,185,338,041,124.78
  5. Step 5: Solve for x
    x = 180,185,338,041,124.78/15,492,629.66
  6. Step 6: Final answer
    x = 11,630,390.84

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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.