Home / 85,982,434.40-128,973,651.60-57,284,620.40

Finding the Fourth Proportional to 85,982,434.40, 128,973,651.60 and 57,284,620.40

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Solution

The fourth proportional to 85,982,434.40, 128,973,651.60 and 57,284,620.40 is: 85,926,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,982,434.40 : 128,973,651.60 = 57,284,620.40 : x
  2. Step 2: Convert to fraction form
    85,982,434.40/128,973,651.60 = 57,284,620.40/x
  3. Step 3: Cross multiply
    85,982,434.40x = 128,973,651.60 × 57,284,620.40
  4. Step 4: Simplify right side
    85,982,434.40x = 7,388,206,673,507,852
  5. Step 5: Solve for x
    x = 7,388,206,673,507,852/85,982,434.40
  6. Step 6: Final answer
    x = 85,926,930.60

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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.