Home / 189,430,372.80-261,413,904.48-102,510,244.80

Finding the Fourth Proportional to 189,430,372.80, 261,413,904.48 and 102,510,244.80

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Solution

The fourth proportional to 189,430,372.80, 261,413,904.48 and 102,510,244.80 is: 141,464,132.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,430,372.80 : 261,413,904.48 = 102,510,244.80 : x
  2. Step 2: Convert to fraction form
    189,430,372.80/261,413,904.48 = 102,510,244.80/x
  3. Step 3: Cross multiply
    189,430,372.80x = 261,413,904.48 × 102,510,244.80
  4. Step 4: Simplify right side
    189,430,372.80x = 26,797,603,342,368,616
  5. Step 5: Solve for x
    x = 26,797,603,342,368,616/189,430,372.80
  6. Step 6: Final answer
    x = 141,464,132.42

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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.