Home / 70,220,785.96-105,372,790.52-39,122,472.69

Finding the Fourth Proportional to 70,220,785.96, 105,372,790.52 and 39,122,472.69

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Solution

The fourth proportional to 70,220,785.96, 105,372,790.52 and 39,122,472.69 is: 58,706,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,220,785.96 : 105,372,790.52 = 39,122,472.69 : x
  2. Step 2: Convert to fraction form
    70,220,785.96/105,372,790.52 = 39,122,472.69/x
  3. Step 3: Cross multiply
    70,220,785.96x = 105,372,790.52 × 39,122,472.69
  4. Step 4: Simplify right side
    70,220,785.96x = 4,122,444,119,522,372
  5. Step 5: Solve for x
    x = 4,122,444,119,522,372/70,220,785.96
  6. Step 6: Final answer
    x = 58,706,892.31

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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.