Home / 142,405,475.28-196,523,420.10-80,535,066

Finding the Fourth Proportional to 142,405,475.28, 196,523,420.10 and 80,535,066

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Solution

The fourth proportional to 142,405,475.28, 196,523,420.10 and 80,535,066 is: 111,140,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405,475.28 : 196,523,420.10 = 80,535,066 : x
  2. Step 2: Convert to fraction form
    142,405,475.28/196,523,420.10 = 80,535,066/x
  3. Step 3: Cross multiply
    142,405,475.28x = 196,523,420.10 × 80,535,066
  4. Step 4: Simplify right side
    142,405,475.28x = 15,827,026,608,299,226
  5. Step 5: Solve for x
    x = 15,827,026,608,299,226/142,405,475.28
  6. Step 6: Final answer
    x = 111,140,576.42

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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.