Home / 126,507,911.08-189,724,640.80-57,380,722.60

Finding the Fourth Proportional to 126,507,911.08, 189,724,640.80 and 57,380,722.60

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Solution

The fourth proportional to 126,507,911.08, 189,724,640.80 and 57,380,722.60 is: 86,054,199.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,507,911.08 : 189,724,640.80 = 57,380,722.60 : x
  2. Step 2: Convert to fraction form
    126,507,911.08/189,724,640.80 = 57,380,722.60/x
  3. Step 3: Cross multiply
    126,507,911.08x = 189,724,640.80 × 57,380,722.60
  4. Step 4: Simplify right side
    126,507,911.08x = 10,886,536,984,129,444
  5. Step 5: Solve for x
    x = 10,886,536,984,129,444/126,507,911.08
  6. Step 6: Final answer
    x = 86,054,199.23

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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.