Home / 142,405,477.28-196,523,422.86-80,535,068

Finding the Fourth Proportional to 142,405,477.28, 196,523,422.86 and 80,535,068

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Solution

The fourth proportional to 142,405,477.28, 196,523,422.86 and 80,535,068 is: 111,140,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405,477.28 : 196,523,422.86 = 80,535,068 : x
  2. Step 2: Convert to fraction form
    142,405,477.28/196,523,422.86 = 80,535,068/x
  3. Step 3: Cross multiply
    142,405,477.28x = 196,523,422.86 × 80,535,068
  4. Step 4: Simplify right side
    142,405,477.28x = 15,827,027,223,622,856
  5. Step 5: Solve for x
    x = 15,827,027,223,622,856/142,405,477.28
  6. Step 6: Final answer
    x = 111,140,579.18

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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.