Home / 76,650,257.32-105,508,870.50-66,843,399.40

Finding the Fourth Proportional to 76,650,257.32, 105,508,870.50 and 66,843,399.40

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Solution

The fourth proportional to 76,650,257.32, 105,508,870.50 and 66,843,399.40 is: 92,009,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,650,257.32 : 105,508,870.50 = 66,843,399.40 : x
  2. Step 2: Convert to fraction form
    76,650,257.32/105,508,870.50 = 66,843,399.40/x
  3. Step 3: Cross multiply
    76,650,257.32x = 105,508,870.50 × 66,843,399.40
  4. Step 4: Simplify right side
    76,650,257.32x = 7,052,571,571,074,378
  5. Step 5: Solve for x
    x = 7,052,571,571,074,378/76,650,257.32
  6. Step 6: Final answer
    x = 92,009,757.27

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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.