Home / 66,435,903.20-99,667,851.60-28,077,672.80

Finding the Fourth Proportional to 66,435,903.20, 99,667,851.60 and 28,077,672.80

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Solution

The fourth proportional to 66,435,903.20, 99,667,851.60 and 28,077,672.80 is: 42,122,424.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,435,903.20 : 99,667,851.60 = 28,077,672.80 : x
  2. Step 2: Convert to fraction form
    66,435,903.20/99,667,851.60 = 28,077,672.80/x
  3. Step 3: Cross multiply
    66,435,903.20x = 99,667,851.60 × 28,077,672.80
  4. Step 4: Simplify right side
    66,435,903.20x = 2,798,441,325,903,756.50
  5. Step 5: Solve for x
    x = 2,798,441,325,903,756.50/66,435,903.20
  6. Step 6: Final answer
    x = 42,122,424.64

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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.