Home / 20,784,103.65-31,168,401.63-7,133,376.35

Finding the Fourth Proportional to 20,784,103.65, 31,168,401.63 and 7,133,376.35

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Solution

The fourth proportional to 20,784,103.65, 31,168,401.63 and 7,133,376.35 is: 10,697,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,103.65 : 31,168,401.63 = 7,133,376.35 : x
  2. Step 2: Convert to fraction form
    20,784,103.65/31,168,401.63 = 7,133,376.35/x
  3. Step 3: Cross multiply
    20,784,103.65x = 31,168,401.63 × 7,133,376.35
  4. Step 4: Simplify right side
    20,784,103.65x = 222,335,939,054,743.44
  5. Step 5: Solve for x
    x = 222,335,939,054,743.44/20,784,103.65
  6. Step 6: Final answer
    x = 10,697,403.30

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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.