Home / 139,565,808.81-192,597,651.63-87,383,638.89

Finding the Fourth Proportional to 139,565,808.81, 192,597,651.63 and 87,383,638.89

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Solution

The fourth proportional to 139,565,808.81, 192,597,651.63 and 87,383,638.89 is: 120,587,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,565,808.81 : 192,597,651.63 = 87,383,638.89 : x
  2. Step 2: Convert to fraction form
    139,565,808.81/192,597,651.63 = 87,383,638.89/x
  3. Step 3: Cross multiply
    139,565,808.81x = 192,597,651.63 × 87,383,638.89
  4. Step 4: Simplify right side
    139,565,808.81x = 16,829,883,641,097,940
  5. Step 5: Solve for x
    x = 16,829,883,641,097,940/139,565,808.81
  6. Step 6: Final answer
    x = 120,587,440.32

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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.