Home / 12,210,007.90-18,315,011.85-3,112,087.90

Finding the Fourth Proportional to 12,210,007.90, 18,315,011.85 and 3,112,087.90

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Solution

The fourth proportional to 12,210,007.90, 18,315,011.85 and 3,112,087.90 is: 4,668,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210,007.90 : 18,315,011.85 = 3,112,087.90 : x
  2. Step 2: Convert to fraction form
    12,210,007.90/18,315,011.85 = 3,112,087.90/x
  3. Step 3: Cross multiply
    12,210,007.90x = 18,315,011.85 × 3,112,087.90
  4. Step 4: Simplify right side
    12,210,007.90x = 56,997,926,766,741.62
  5. Step 5: Solve for x
    x = 56,997,926,766,741.62/12,210,007.90
  6. Step 6: Final answer
    x = 4,668,131.85

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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.