Home / 13,789,534.10-20,652,808.35-8,120,830.10

Finding the Fourth Proportional to 13,789,534.10, 20,652,808.35 and 8,120,830.10

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Solution

The fourth proportional to 13,789,534.10, 20,652,808.35 and 8,120,830.10 is: 12,162,698.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789,534.10 : 20,652,808.35 = 8,120,830.10 : x
  2. Step 2: Convert to fraction form
    13,789,534.10/20,652,808.35 = 8,120,830.10/x
  3. Step 3: Cross multiply
    13,789,534.10x = 20,652,808.35 × 8,120,830.10
  4. Step 4: Simplify right side
    13,789,534.10x = 167,717,947,698,211.34
  5. Step 5: Solve for x
    x = 167,717,947,698,211.34/13,789,534.10
  6. Step 6: Final answer
    x = 12,162,698.64

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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.