Home / 18,909,644.87-28,373,324.69-9,319,795.67

Finding the Fourth Proportional to 18,909,644.87, 28,373,324.69 and 9,319,795.67

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Solution

The fourth proportional to 18,909,644.87, 28,373,324.69 and 9,319,795.67 is: 13,984,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909,644.87 : 28,373,324.69 = 9,319,795.67 : x
  2. Step 2: Convert to fraction form
    18,909,644.87/28,373,324.69 = 9,319,795.67/x
  3. Step 3: Cross multiply
    18,909,644.87x = 28,373,324.69 × 9,319,795.67
  4. Step 4: Simplify right side
    18,909,644.87x = 264,433,588,683,598.88
  5. Step 5: Solve for x
    x = 264,433,588,683,598.88/18,909,644.87
  6. Step 6: Final answer
    x = 13,984,058.95

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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.