Home / 85,602,786.75-128,328,596.60-65,497,783.23

Finding the Fourth Proportional to 85,602,786.75, 128,328,596.60 and 65,497,783.23

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Solution

The fourth proportional to 85,602,786.75, 128,328,596.60 and 65,497,783.23 is: 98,188,843.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,602,786.75 : 128,328,596.60 = 65,497,783.23 : x
  2. Step 2: Convert to fraction form
    85,602,786.75/128,328,596.60 = 65,497,783.23/x
  3. Step 3: Cross multiply
    85,602,786.75x = 128,328,596.60 × 65,497,783.23
  4. Step 4: Simplify right side
    85,602,786.75x = 8,405,238,601,989,426
  5. Step 5: Solve for x
    x = 8,405,238,601,989,426/85,602,786.75
  6. Step 6: Final answer
    x = 98,188,843.16

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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.