Home / 85,977,149.48-118,653,447.51-64,745,921.61

Finding the Fourth Proportional to 85,977,149.48, 118,653,447.51 and 64,745,921.61

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Solution

The fourth proportional to 85,977,149.48, 118,653,447.51 and 64,745,921.61 is: 89,353,122.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,977,149.48 : 118,653,447.51 = 64,745,921.61 : x
  2. Step 2: Convert to fraction form
    85,977,149.48/118,653,447.51 = 64,745,921.61/x
  3. Step 3: Cross multiply
    85,977,149.48x = 118,653,447.51 × 64,745,921.61
  4. Step 4: Simplify right side
    85,977,149.48x = 7,682,326,811,238,710
  5. Step 5: Solve for x
    x = 7,682,326,811,238,710/85,977,149.48
  6. Step 6: Final answer
    x = 89,353,122.98

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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.