Home / 186,086,439.40-279,129,659.10-76,875,313.90

Finding the Fourth Proportional to 186,086,439.40, 279,129,659.10 and 76,875,313.90

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Solution

The fourth proportional to 186,086,439.40, 279,129,659.10 and 76,875,313.90 is: 115,312,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,086,439.40 : 279,129,659.10 = 76,875,313.90 : x
  2. Step 2: Convert to fraction form
    186,086,439.40/279,129,659.10 = 76,875,313.90/x
  3. Step 3: Cross multiply
    186,086,439.40x = 279,129,659.10 × 76,875,313.90
  4. Step 4: Simplify right side
    186,086,439.40x = 21,458,180,162,112,496
  5. Step 5: Solve for x
    x = 21,458,180,162,112,496/186,086,439.40
  6. Step 6: Final answer
    x = 115,312,970.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.