Home / 67,156,953.86-100,724,162.31-18,639,736.94

Finding the Fourth Proportional to 67,156,953.86, 100,724,162.31 and 18,639,736.94

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Solution

The fourth proportional to 67,156,953.86, 100,724,162.31 and 18,639,736.94 is: 27,956,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,156,953.86 : 100,724,162.31 = 18,639,736.94 : x
  2. Step 2: Convert to fraction form
    67,156,953.86/100,724,162.31 = 18,639,736.94/x
  3. Step 3: Cross multiply
    67,156,953.86x = 100,724,162.31 × 18,639,736.94
  4. Step 4: Simplify right side
    67,156,953.86x = 1,877,471,888,960,263
  5. Step 5: Solve for x
    x = 1,877,471,888,960,263/67,156,953.86
  6. Step 6: Final answer
    x = 27,956,477.79

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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.