Home / 20,440,443.24-28,200,688.58-13,102,322.64

Finding the Fourth Proportional to 20,440,443.24, 28,200,688.58 and 13,102,322.64

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Solution

The fourth proportional to 20,440,443.24, 28,200,688.58 and 13,102,322.64 is: 18,076,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,443.24 : 28,200,688.58 = 13,102,322.64 : x
  2. Step 2: Convert to fraction form
    20,440,443.24/28,200,688.58 = 13,102,322.64/x
  3. Step 3: Cross multiply
    20,440,443.24x = 28,200,688.58 × 13,102,322.64
  4. Step 4: Simplify right side
    20,440,443.24x = 369,494,520,445,323.44
  5. Step 5: Solve for x
    x = 369,494,520,445,323.44/20,440,443.24
  6. Step 6: Final answer
    x = 18,076,639.34

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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.