Home / 101,815,977.20-152,556,004.20-86,699,433.20

Finding the Fourth Proportional to 101,815,977.20, 152,556,004.20 and 86,699,433.20

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Solution

The fourth proportional to 101,815,977.20, 152,556,004.20 and 86,699,433.20 is: 129,906,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,815,977.20 : 152,556,004.20 = 86,699,433.20 : x
  2. Step 2: Convert to fraction form
    101,815,977.20/152,556,004.20 = 86,699,433.20/x
  3. Step 3: Cross multiply
    101,815,977.20x = 152,556,004.20 × 86,699,433.20
  4. Step 4: Simplify right side
    101,815,977.20x = 13,226,519,095,396,818
  5. Step 5: Solve for x
    x = 13,226,519,095,396,818/101,815,977.20
  6. Step 6: Final answer
    x = 129,906,125.34

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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.