Home / 139,565,809.81-192,597,653.01-87,383,639.89

Finding the Fourth Proportional to 139,565,809.81, 192,597,653.01 and 87,383,639.89

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Solution

The fourth proportional to 139,565,809.81, 192,597,653.01 and 87,383,639.89 is: 120,587,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,565,809.81 : 192,597,653.01 = 87,383,639.89 : x
  2. Step 2: Convert to fraction form
    139,565,809.81/192,597,653.01 = 87,383,639.89/x
  3. Step 3: Cross multiply
    139,565,809.81x = 192,597,653.01 × 87,383,639.89
  4. Step 4: Simplify right side
    139,565,809.81x = 16,829,883,954,285,014
  5. Step 5: Solve for x
    x = 16,829,883,954,285,014/139,565,809.81
  6. Step 6: Final answer
    x = 120,587,441.70

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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.