Home / 135,167,619.84-186,530,181.12-76,441,816.32

Finding the Fourth Proportional to 135,167,619.84, 186,530,181.12 and 76,441,816.32

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Solution

The fourth proportional to 135,167,619.84, 186,530,181.12 and 76,441,816.32 is: 105,489,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,167,619.84 : 186,530,181.12 = 76,441,816.32 : x
  2. Step 2: Convert to fraction form
    135,167,619.84/186,530,181.12 = 76,441,816.32/x
  3. Step 3: Cross multiply
    135,167,619.84x = 186,530,181.12 × 76,441,816.32
  4. Step 4: Simplify right side
    135,167,619.84x = 14,258,705,843,311,370
  5. Step 5: Solve for x
    x = 14,258,705,843,311,370/135,167,619.84
  6. Step 6: Final answer
    x = 105,489,065.06

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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.