Home / 66,431,969.20-99,647,953.80-57,184,895.80

Finding the Fourth Proportional to 66,431,969.20, 99,647,953.80 and 57,184,895.80

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Solution

The fourth proportional to 66,431,969.20, 99,647,953.80 and 57,184,895.80 is: 85,777,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431,969.20 : 99,647,953.80 = 57,184,895.80 : x
  2. Step 2: Convert to fraction form
    66,431,969.20/99,647,953.80 = 57,184,895.80/x
  3. Step 3: Cross multiply
    66,431,969.20x = 99,647,953.80 × 57,184,895.80
  4. Step 4: Simplify right side
    66,431,969.20x = 5,698,357,854,736,214
  5. Step 5: Solve for x
    x = 5,698,357,854,736,214/66,431,969.20
  6. Step 6: Final answer
    x = 85,777,343.70

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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.