Home / 210,149,704.60-314,951,133.36-85,507,076.45

Finding the Fourth Proportional to 210,149,704.60, 314,951,133.36 and 85,507,076.45

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Solution

The fourth proportional to 210,149,704.60, 314,951,133.36 and 85,507,076.45 is: 128,149,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,149,704.60 : 314,951,133.36 = 85,507,076.45 : x
  2. Step 2: Convert to fraction form
    210,149,704.60/314,951,133.36 = 85,507,076.45/x
  3. Step 3: Cross multiply
    210,149,704.60x = 314,951,133.36 × 85,507,076.45
  4. Step 4: Simplify right side
    210,149,704.60x = 26,930,550,639,335,692
  5. Step 5: Solve for x
    x = 26,930,550,639,335,692/210,149,704.60
  6. Step 6: Final answer
    x = 128,149,362.34

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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.