Home / 70,038,814.21-105,217,653.61-50,667,789.76

Finding the Fourth Proportional to 70,038,814.21, 105,217,653.61 and 50,667,789.76

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Solution

The fourth proportional to 70,038,814.21, 105,217,653.61 and 50,667,789.76 is: 76,117,021.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,038,814.21 : 105,217,653.61 = 50,667,789.76 : x
  2. Step 2: Convert to fraction form
    70,038,814.21/105,217,653.61 = 50,667,789.76/x
  3. Step 3: Cross multiply
    70,038,814.21x = 105,217,653.61 × 50,667,789.76
  4. Step 4: Simplify right side
    70,038,814.21x = 5,331,145,951,625,897
  5. Step 5: Solve for x
    x = 5,331,145,951,625,897/70,038,814.21
  6. Step 6: Final answer
    x = 76,117,021.86

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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.