Home / 12,074,709.80-18,133,059.90-6,406,005.80

Finding the Fourth Proportional to 12,074,709.80, 18,133,059.90 and 6,406,005.80

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Solution

The fourth proportional to 12,074,709.80, 18,133,059.90 and 6,406,005.80 is: 9,620,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074,709.80 : 18,133,059.90 = 6,406,005.80 : x
  2. Step 2: Convert to fraction form
    12,074,709.80/18,133,059.90 = 6,406,005.80/x
  3. Step 3: Cross multiply
    12,074,709.80x = 18,133,059.90 × 6,406,005.80
  4. Step 4: Simplify right side
    12,074,709.80x = 116,160,486,891,147.41
  5. Step 5: Solve for x
    x = 116,160,486,891,147.41/12,074,709.80
  6. Step 6: Final answer
    x = 9,620,147.30

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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.