Home / 149,153,453,892.64-205,831,849,064.04-80,564,866,739.54

Finding the Fourth Proportional to 149,153,453,892.64, 205,831,849,064.04 and 80,564,866,739.54

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Solution

The fourth proportional to 149,153,453,892.64, 205,831,849,064.04 and 80,564,866,739.54 is: 111,179,560,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,153,453,892.64 : 205,831,849,064.04 = 80,564,866,739.54 : x
  2. Step 2: Convert to fraction form
    149,153,453,892.64/205,831,849,064.04 = 80,564,866,739.54/x
  3. Step 3: Cross multiply
    149,153,453,892.64x = 205,831,849,064.04 × 80,564,866,739.54
  4. Step 4: Simplify right side
    149,153,453,892.64x = 16,582,815,490,597,080,530,944
  5. Step 5: Solve for x
    x = 16,582,815,490,597,080,530,944/149,153,453,892.64
  6. Step 6: Final answer
    x = 111,179,560,766.55

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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.