Home / 142,219,604.08-196,278,981.55-80,343,928.45

Finding the Fourth Proportional to 142,219,604.08, 196,278,981.55 and 80,343,928.45

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Solution

The fourth proportional to 142,219,604.08, 196,278,981.55 and 80,343,928.45 is: 110,883,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,219,604.08 : 196,278,981.55 = 80,343,928.45 : x
  2. Step 2: Convert to fraction form
    142,219,604.08/196,278,981.55 = 80,343,928.45/x
  3. Step 3: Cross multiply
    142,219,604.08x = 196,278,981.55 × 80,343,928.45
  4. Step 4: Simplify right side
    142,219,604.08x = 15,769,824,450,388,896
  5. Step 5: Solve for x
    x = 15,769,824,450,388,896/142,219,604.08
  6. Step 6: Final answer
    x = 110,883,619.40

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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.