Home / 85,815,948.96-128,721,074.40-37,293,849.27

Finding the Fourth Proportional to 85,815,948.96, 128,721,074.40 and 37,293,849.27

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Solution

The fourth proportional to 85,815,948.96, 128,721,074.40 and 37,293,849.27 is: 55,939,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,815,948.96 : 128,721,074.40 = 37,293,849.27 : x
  2. Step 2: Convert to fraction form
    85,815,948.96/128,721,074.40 = 37,293,849.27/x
  3. Step 3: Cross multiply
    85,815,948.96x = 128,721,074.40 × 37,293,849.27
  4. Step 4: Simplify right side
    85,815,948.96x = 4,800,504,346,546,056
  5. Step 5: Solve for x
    x = 4,800,504,346,546,056/85,815,948.96
  6. Step 6: Final answer
    x = 55,939,535.77

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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.