Home / 20,669,490.60-31,004,235.90-9,907,810.35

Finding the Fourth Proportional to 20,669,490.60, 31,004,235.90 and 9,907,810.35

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Solution

The fourth proportional to 20,669,490.60, 31,004,235.90 and 9,907,810.35 is: 14,861,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,490.60 : 31,004,235.90 = 9,907,810.35 : x
  2. Step 2: Convert to fraction form
    20,669,490.60/31,004,235.90 = 9,907,810.35/x
  3. Step 3: Cross multiply
    20,669,490.60x = 31,004,235.90 × 9,907,810.35
  4. Step 4: Simplify right side
    20,669,490.60x = 307,184,089,343,861.56
  5. Step 5: Solve for x
    x = 307,184,089,343,861.56/20,669,490.60
  6. Step 6: Final answer
    x = 14,861,715.53

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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.