Home / 136,157,999.28-187,883,549.40-76,618,255.92

Finding the Fourth Proportional to 136,157,999.28, 187,883,549.40 and 76,618,255.92

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Solution

The fourth proportional to 136,157,999.28, 187,883,549.40 and 76,618,255.92 is: 105,725,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,157,999.28 : 187,883,549.40 = 76,618,255.92 : x
  2. Step 2: Convert to fraction form
    136,157,999.28/187,883,549.40 = 76,618,255.92/x
  3. Step 3: Cross multiply
    136,157,999.28x = 187,883,549.40 × 76,618,255.92
  4. Step 4: Simplify right side
    136,157,999.28x = 14,395,309,871,087,164
  5. Step 5: Solve for x
    x = 14,395,309,871,087,164/136,157,999.28
  6. Step 6: Final answer
    x = 105,725,039.64

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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.