Home / 85,698,251.76-118,299,779.55-57,858,676.50

Finding the Fourth Proportional to 85,698,251.76, 118,299,779.55 and 57,858,676.50

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Solution

The fourth proportional to 85,698,251.76, 118,299,779.55 and 57,858,676.50 is: 79,869,408.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,698,251.76 : 118,299,779.55 = 57,858,676.50 : x
  2. Step 2: Convert to fraction form
    85,698,251.76/118,299,779.55 = 57,858,676.50/x
  3. Step 3: Cross multiply
    85,698,251.76x = 118,299,779.55 × 57,858,676.50
  4. Step 4: Simplify right side
    85,698,251.76x = 6,844,668,675,004,765
  5. Step 5: Solve for x
    x = 6,844,668,675,004,765/85,698,251.76
  6. Step 6: Final answer
    x = 79,869,408.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.