Home / 142,405,485.28-196,523,433.90-80,535,076

Finding the Fourth Proportional to 142,405,485.28, 196,523,433.90 and 80,535,076

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Solution

The fourth proportional to 142,405,485.28, 196,523,433.90 and 80,535,076 is: 111,140,590.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405,485.28 : 196,523,433.90 = 80,535,076 : x
  2. Step 2: Convert to fraction form
    142,405,485.28/196,523,433.90 = 80,535,076/x
  3. Step 3: Cross multiply
    142,405,485.28x = 196,523,433.90 × 80,535,076
  4. Step 4: Simplify right side
    142,405,485.28x = 15,827,029,684,917,476
  5. Step 5: Solve for x
    x = 15,827,029,684,917,476/142,405,485.28
  6. Step 6: Final answer
    x = 111,140,590.22

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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.