Home / 66,171,161.60-99,259,852.80-20,734,438.40

Finding the Fourth Proportional to 66,171,161.60, 99,259,852.80 and 20,734,438.40

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Solution

The fourth proportional to 66,171,161.60, 99,259,852.80 and 20,734,438.40 is: 31,102,632.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,171,161.60 : 99,259,852.80 = 20,734,438.40 : x
  2. Step 2: Convert to fraction form
    66,171,161.60/99,259,852.80 = 20,734,438.40/x
  3. Step 3: Cross multiply
    66,171,161.60x = 99,259,852.80 × 20,734,438.40
  4. Step 4: Simplify right side
    66,171,161.60x = 2,058,097,303,474,667.25
  5. Step 5: Solve for x
    x = 2,058,097,303,474,667.25/66,171,161.60
  6. Step 6: Final answer
    x = 31,102,632.23

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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.