Home / 18,468,000.80-27,702,001.20-12,421,383.20

Finding the Fourth Proportional to 18,468,000.80, 27,702,001.20 and 12,421,383.20

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Solution

The fourth proportional to 18,468,000.80, 27,702,001.20 and 12,421,383.20 is: 18,632,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468,000.80 : 27,702,001.20 = 12,421,383.20 : x
  2. Step 2: Convert to fraction form
    18,468,000.80/27,702,001.20 = 12,421,383.20/x
  3. Step 3: Cross multiply
    18,468,000.80x = 27,702,001.20 × 12,421,383.20
  4. Step 4: Simplify right side
    18,468,000.80x = 344,097,172,312,059.81
  5. Step 5: Solve for x
    x = 344,097,172,312,059.81/18,468,000.80
  6. Step 6: Final answer
    x = 18,632,074.80

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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.