Home / 66,911,928.00-100,373,869.80-20,854,187.32

Finding the Fourth Proportional to 66,911,928.00, 100,373,869.80 and 20,854,187.32

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Solution

The fourth proportional to 66,911,928.00, 100,373,869.80 and 20,854,187.32 is: 31,283,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911,928.00 : 100,373,869.80 = 20,854,187.32 : x
  2. Step 2: Convert to fraction form
    66,911,928.00/100,373,869.80 = 20,854,187.32/x
  3. Step 3: Cross multiply
    66,911,928.00x = 100,373,869.80 × 20,854,187.32
  4. Step 4: Simplify right side
    66,911,928.00x = 2,093,215,482,236,350.75
  5. Step 5: Solve for x
    x = 2,093,215,482,236,350.75/66,911,928.00
  6. Step 6: Final answer
    x = 31,283,144.05

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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.