Home / 18,992,688.56-26,218,947.15-12,724,009.79

Finding the Fourth Proportional to 18,992,688.56, 26,218,947.15 and 12,724,009.79

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Solution

The fourth proportional to 18,992,688.56, 26,218,947.15 and 12,724,009.79 is: 17,565,187.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992,688.56 : 26,218,947.15 = 12,724,009.79 : x
  2. Step 2: Convert to fraction form
    18,992,688.56/26,218,947.15 = 12,724,009.79/x
  3. Step 3: Cross multiply
    18,992,688.56x = 26,218,947.15 × 12,724,009.79
  4. Step 4: Simplify right side
    18,992,688.56x = 333,610,140,088,997.88
  5. Step 5: Solve for x
    x = 333,610,140,088,997.88/18,992,688.56
  6. Step 6: Final answer
    x = 17,565,187.74

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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.