Home / 86,983,965.42-120,030,720.95-51,214,720.20

Finding the Fourth Proportional to 86,983,965.42, 120,030,720.95 and 51,214,720.20

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Solution

The fourth proportional to 86,983,965.42, 120,030,720.95 and 51,214,720.20 is: 70,672,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,983,965.42 : 120,030,720.95 = 51,214,720.20 : x
  2. Step 2: Convert to fraction form
    86,983,965.42/120,030,720.95 = 51,214,720.20/x
  3. Step 3: Cross multiply
    86,983,965.42x = 120,030,720.95 × 51,214,720.20
  4. Step 4: Simplify right side
    86,983,965.42x = 6,147,339,788,536,450
  5. Step 5: Solve for x
    x = 6,147,339,788,536,450/86,983,965.42
  6. Step 6: Final answer
    x = 70,672,103.29

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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.