Home / 19,872,000.80-29,808,001.20-13,825,383.20

Finding the Fourth Proportional to 19,872,000.80, 29,808,001.20 and 13,825,383.20

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Solution

The fourth proportional to 19,872,000.80, 29,808,001.20 and 13,825,383.20 is: 20,738,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872,000.80 : 29,808,001.20 = 13,825,383.20 : x
  2. Step 2: Convert to fraction form
    19,872,000.80/29,808,001.20 = 13,825,383.20/x
  3. Step 3: Cross multiply
    19,872,000.80x = 29,808,001.20 × 13,825,383.20
  4. Step 4: Simplify right side
    19,872,000.80x = 412,107,039,016,059.81
  5. Step 5: Solve for x
    x = 412,107,039,016,059.81/19,872,000.80
  6. Step 6: Final answer
    x = 20,738,074.80

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1.5x scale

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.