Home / 157,470,537.60-217,321,667.24-86,920,156.64

Finding the Fourth Proportional to 157,470,537.60, 217,321,667.24 and 86,920,156.64

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Solution

The fourth proportional to 157,470,537.60, 217,321,667.24 and 86,920,156.64 is: 119,956,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,470,537.60 : 217,321,667.24 = 86,920,156.64 : x
  2. Step 2: Convert to fraction form
    157,470,537.60/217,321,667.24 = 86,920,156.64/x
  3. Step 3: Cross multiply
    157,470,537.60x = 217,321,667.24 × 86,920,156.64
  4. Step 4: Simplify right side
    157,470,537.60x = 18,889,633,357,766,756
  5. Step 5: Solve for x
    x = 18,889,633,357,766,756/157,470,537.60
  6. Step 6: Final answer
    x = 119,956,619.48

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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.