Home / 189,935,520.92-262,119,210.73-105,162,639.07

Finding the Fourth Proportional to 189,935,520.92, 262,119,210.73 and 105,162,639.07

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Solution

The fourth proportional to 189,935,520.92, 262,119,210.73 and 105,162,639.07 is: 145,128,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,935,520.92 : 262,119,210.73 = 105,162,639.07 : x
  2. Step 2: Convert to fraction form
    189,935,520.92/262,119,210.73 = 105,162,639.07/x
  3. Step 3: Cross multiply
    189,935,520.92x = 262,119,210.73 × 105,162,639.07
  4. Step 4: Simplify right side
    189,935,520.92x = 27,565,147,951,312,260
  5. Step 5: Solve for x
    x = 27,565,147,951,312,260/189,935,520.92
  6. Step 6: Final answer
    x = 145,128,977.55

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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.