Home / 76,786,549.96-105,965,813.64-41,979,242.20

Finding the Fourth Proportional to 76,786,549.96, 105,965,813.64 and 41,979,242.20

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Solution

The fourth proportional to 76,786,549.96, 105,965,813.64 and 41,979,242.20 is: 57,931,559.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,786,549.96 : 105,965,813.64 = 41,979,242.20 : x
  2. Step 2: Convert to fraction form
    76,786,549.96/105,965,813.64 = 41,979,242.20/x
  3. Step 3: Cross multiply
    76,786,549.96x = 105,965,813.64 × 41,979,242.20
  4. Step 4: Simplify right side
    76,786,549.96x = 4,448,364,555,713,624
  5. Step 5: Solve for x
    x = 4,448,364,555,713,624/76,786,549.96
  6. Step 6: Final answer
    x = 57,931,559.08

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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.