Home / 66,112,309.35-99,168,693.26-20,054,572.92

Finding the Fourth Proportional to 66,112,309.35, 99,168,693.26 and 20,054,572.92

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Solution

The fourth proportional to 66,112,309.35, 99,168,693.26 and 20,054,572.92 is: 30,081,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112,309.35 : 99,168,693.26 = 20,054,572.92 : x
  2. Step 2: Convert to fraction form
    66,112,309.35/99,168,693.26 = 20,054,572.92/x
  3. Step 3: Cross multiply
    66,112,309.35x = 99,168,693.26 × 20,054,572.92
  4. Step 4: Simplify right side
    66,112,309.35x = 1,988,785,790,263,509.75
  5. Step 5: Solve for x
    x = 1,988,785,790,263,509.75/66,112,309.35
  6. Step 6: Final answer
    x = 30,081,928.91

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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.