Home / 120,004,782.56-165,606,605.52-65,000,639.12

Finding the Fourth Proportional to 120,004,782.56, 165,606,605.52 and 65,000,639.12

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Solution

The fourth proportional to 120,004,782.56, 165,606,605.52 and 65,000,639.12 is: 89,700,885.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,004,782.56 : 165,606,605.52 = 65,000,639.12 : x
  2. Step 2: Convert to fraction form
    120,004,782.56/165,606,605.52 = 65,000,639.12/x
  3. Step 3: Cross multiply
    120,004,782.56x = 165,606,605.52 × 65,000,639.12
  4. Step 4: Simplify right side
    120,004,782.56x = 10,764,535,201,293,720
  5. Step 5: Solve for x
    x = 10,764,535,201,293,720/120,004,782.56
  6. Step 6: Final answer
    x = 89,700,885.01

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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.