Home / 142,808,876.64-197,080,406.82-80,927,157.60

Finding the Fourth Proportional to 142,808,876.64, 197,080,406.82 and 80,927,157.60

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Solution

The fourth proportional to 142,808,876.64, 197,080,406.82 and 80,927,157.60 is: 111,681,833.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,808,876.64 : 197,080,406.82 = 80,927,157.60 : x
  2. Step 2: Convert to fraction form
    142,808,876.64/197,080,406.82 = 80,927,157.60/x
  3. Step 3: Cross multiply
    142,808,876.64x = 197,080,406.82 × 80,927,157.60
  4. Step 4: Simplify right side
    142,808,876.64x = 15,949,157,142,594,254
  5. Step 5: Solve for x
    x = 15,949,157,142,594,254/142,808,876.64
  6. Step 6: Final answer
    x = 111,681,833.22

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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.