Home / 142,033,002.92-196,005,586.02-80,166,447.08

Finding the Fourth Proportional to 142,033,002.92, 196,005,586.02 and 80,166,447.08

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Solution

The fourth proportional to 142,033,002.92, 196,005,586.02 and 80,166,447.08 is: 110,629,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,033,002.92 : 196,005,586.02 = 80,166,447.08 : x
  2. Step 2: Convert to fraction form
    142,033,002.92/196,005,586.02 = 80,166,447.08/x
  3. Step 3: Cross multiply
    142,033,002.92x = 196,005,586.02 × 80,166,447.08
  4. Step 4: Simplify right side
    142,033,002.92x = 15,713,071,439,056,718
  5. Step 5: Solve for x
    x = 15,713,071,439,056,718/142,033,002.92
  6. Step 6: Final answer
    x = 110,629,720.67

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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.