Home / 85,193,953.15-127,528,829.30-55,586,391.12

Finding the Fourth Proportional to 85,193,953.15, 127,528,829.30 and 55,586,391.12

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Solution

The fourth proportional to 85,193,953.15, 127,528,829.30 and 55,586,391.12 is: 83,208,574.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,193,953.15 : 127,528,829.30 = 55,586,391.12 : x
  2. Step 2: Convert to fraction form
    85,193,953.15/127,528,829.30 = 55,586,391.12/x
  3. Step 3: Cross multiply
    85,193,953.15x = 127,528,829.30 × 55,586,391.12
  4. Step 4: Simplify right side
    85,193,953.15x = 7,088,867,383,907,872
  5. Step 5: Solve for x
    x = 7,088,867,383,907,872/85,193,953.15
  6. Step 6: Final answer
    x = 83,208,574.34

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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.