Home / 138,813,548.37-191,450,999.17-122,032,407.41

Finding the Fourth Proportional to 138,813,548.37, 191,450,999.17 and 122,032,407.41

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Solution

The fourth proportional to 138,813,548.37, 191,450,999.17 and 122,032,407.41 is: 168,306,527.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,813,548.37 : 191,450,999.17 = 122,032,407.41 : x
  2. Step 2: Convert to fraction form
    138,813,548.37/191,450,999.17 = 122,032,407.41/x
  3. Step 3: Cross multiply
    138,813,548.37x = 191,450,999.17 × 122,032,407.41
  4. Step 4: Simplify right side
    138,813,548.37x = 23,363,226,328,991,196
  5. Step 5: Solve for x
    x = 23,363,226,328,991,196/138,813,548.37
  6. Step 6: Final answer
    x = 168,306,527.73

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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.