Home / 101,815,982.20-152,556,011.70-86,699,438.20

Finding the Fourth Proportional to 101,815,982.20, 152,556,011.70 and 86,699,438.20

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Solution

The fourth proportional to 101,815,982.20, 152,556,011.70 and 86,699,438.20 is: 129,906,132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,815,982.20 : 152,556,011.70 = 86,699,438.20 : x
  2. Step 2: Convert to fraction form
    101,815,982.20/152,556,011.70 = 86,699,438.20/x
  3. Step 3: Cross multiply
    101,815,982.20x = 152,556,011.70 × 86,699,438.20
  4. Step 4: Simplify right side
    101,815,982.20x = 13,226,520,508,422,626
  5. Step 5: Solve for x
    x = 13,226,520,508,422,626/101,815,982.20
  6. Step 6: Final answer
    x = 129,906,132.84

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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.