Home / 219,646,679.87-303,111,586.40-120,529,085.60

Finding the Fourth Proportional to 219,646,679.87, 303,111,586.40 and 120,529,085.60

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Solution

The fourth proportional to 219,646,679.87, 303,111,586.40 and 120,529,085.60 is: 166,329,681.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,646,679.87 : 303,111,586.40 = 120,529,085.60 : x
  2. Step 2: Convert to fraction form
    219,646,679.87/303,111,586.40 = 120,529,085.60/x
  3. Step 3: Cross multiply
    219,646,679.87x = 303,111,586.40 × 120,529,085.60
  4. Step 4: Simplify right side
    219,646,679.87x = 36,533,762,341,439,192
  5. Step 5: Solve for x
    x = 36,533,762,341,439,192/219,646,679.87
  6. Step 6: Final answer
    x = 166,329,681.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.