Home / 142,405,486.28-196,523,435.28-80,535,077

Finding the Fourth Proportional to 142,405,486.28, 196,523,435.28 and 80,535,077

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Solution

The fourth proportional to 142,405,486.28, 196,523,435.28 and 80,535,077 is: 111,140,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405,486.28 : 196,523,435.28 = 80,535,077 : x
  2. Step 2: Convert to fraction form
    142,405,486.28/196,523,435.28 = 80,535,077/x
  3. Step 3: Cross multiply
    142,405,486.28x = 196,523,435.28 × 80,535,077
  4. Step 4: Simplify right side
    142,405,486.28x = 15,827,029,992,579,316
  5. Step 5: Solve for x
    x = 15,827,029,992,579,316/142,405,486.28
  6. Step 6: Final answer
    x = 111,140,591.60

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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.