Home / 126,367,997.80-189,551,996.70-103,409,746.60

Finding the Fourth Proportional to 126,367,997.80, 189,551,996.70 and 103,409,746.60

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Solution

The fourth proportional to 126,367,997.80, 189,551,996.70 and 103,409,746.60 is: 155,114,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,367,997.80 : 189,551,996.70 = 103,409,746.60 : x
  2. Step 2: Convert to fraction form
    126,367,997.80/189,551,996.70 = 103,409,746.60/x
  3. Step 3: Cross multiply
    126,367,997.80x = 189,551,996.70 × 103,409,746.60
  4. Step 4: Simplify right side
    126,367,997.80x = 19,601,523,946,271,032
  5. Step 5: Solve for x
    x = 19,601,523,946,271,032/126,367,997.80
  6. Step 6: Final answer
    x = 155,114,619.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.