Home / 70,118,919.96-105,183,667.04-20,930,887.91

Finding the Fourth Proportional to 70,118,919.96, 105,183,667.04 and 20,930,887.91

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Solution

The fourth proportional to 70,118,919.96, 105,183,667.04 and 20,930,887.91 is: 31,397,910.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,118,919.96 : 105,183,667.04 = 20,930,887.91 : x
  2. Step 2: Convert to fraction form
    70,118,919.96/105,183,667.04 = 20,930,887.91/x
  3. Step 3: Cross multiply
    70,118,919.96x = 105,183,667.04 × 20,930,887.91
  4. Step 4: Simplify right side
    70,118,919.96x = 2,201,587,544,146,428.75
  5. Step 5: Solve for x
    x = 2,201,587,544,146,428.75/70,118,919.96
  6. Step 6: Final answer
    x = 31,397,910.08

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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.