Home / 47,174,129-70,758,531.96-20,905,399.16

Finding the Fourth Proportional to 47,174,129, 70,758,531.96 and 20,905,399.16

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Solution

The fourth proportional to 47,174,129, 70,758,531.96 and 20,905,399.16 is: 31,356,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,174,129 : 70,758,531.96 = 20,905,399.16 : x
  2. Step 2: Convert to fraction form
    47,174,129/70,758,531.96 = 20,905,399.16/x
  3. Step 3: Cross multiply
    47,174,129x = 70,758,531.96 × 20,905,399.16
  4. Step 4: Simplify right side
    47,174,129x = 1,479,235,354,599,417
  5. Step 5: Solve for x
    x = 1,479,235,354,599,417/47,174,129
  6. Step 6: Final answer
    x = 31,356,919.27

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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.