Home / 310,236,030.72-428,125,617.96-171,009,117.54

Finding the Fourth Proportional to 310,236,030.72, 428,125,617.96 and 171,009,117.54

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Solution

The fourth proportional to 310,236,030.72, 428,125,617.96 and 171,009,117.54 is: 235,992,524.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,236,030.72 : 428,125,617.96 = 171,009,117.54 : x
  2. Step 2: Convert to fraction form
    310,236,030.72/428,125,617.96 = 171,009,117.54/x
  3. Step 3: Cross multiply
    310,236,030.72x = 428,125,617.96 × 171,009,117.54
  4. Step 4: Simplify right side
    310,236,030.72x = 73,213,384,123,606,768
  5. Step 5: Solve for x
    x = 73,213,384,123,606,768/310,236,030.72
  6. Step 6: Final answer
    x = 235,992,524.64

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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.