Home / 20,334,704.60-28,051,516.08-12,984,809.96

Finding the Fourth Proportional to 20,334,704.60, 28,051,516.08 and 12,984,809.96

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Solution

The fourth proportional to 20,334,704.60, 28,051,516.08 and 12,984,809.96 is: 17,912,411.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,704.60 : 28,051,516.08 = 12,984,809.96 : x
  2. Step 2: Convert to fraction form
    20,334,704.60/28,051,516.08 = 12,984,809.96/x
  3. Step 3: Cross multiply
    20,334,704.60x = 28,051,516.08 × 12,984,809.96
  4. Step 4: Simplify right side
    20,334,704.60x = 364,243,605,388,684.19
  5. Step 5: Solve for x
    x = 364,243,605,388,684.19/20,334,704.60
  6. Step 6: Final answer
    x = 17,912,411.94

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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.