Home / 142,405,473.28-196,523,417.34-80,535,064

Finding the Fourth Proportional to 142,405,473.28, 196,523,417.34 and 80,535,064

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Solution

The fourth proportional to 142,405,473.28, 196,523,417.34 and 80,535,064 is: 111,140,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405,473.28 : 196,523,417.34 = 80,535,064 : x
  2. Step 2: Convert to fraction form
    142,405,473.28/196,523,417.34 = 80,535,064/x
  3. Step 3: Cross multiply
    142,405,473.28x = 196,523,417.34 × 80,535,064
  4. Step 4: Simplify right side
    142,405,473.28x = 15,827,025,992,975,610
  5. Step 5: Solve for x
    x = 15,827,025,992,975,610/142,405,473.28
  6. Step 6: Final answer
    x = 111,140,573.66

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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.