Home / 310,236,024.69-428,125,609.71-171,009,111.51

Finding the Fourth Proportional to 310,236,024.69, 428,125,609.71 and 171,009,111.51

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Solution

The fourth proportional to 310,236,024.69, 428,125,609.71 and 171,009,111.51 is: 235,992,516.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,236,024.69 : 428,125,609.71 = 171,009,111.51 : x
  2. Step 2: Convert to fraction form
    310,236,024.69/428,125,609.71 = 171,009,111.51/x
  3. Step 3: Cross multiply
    310,236,024.69x = 428,125,609.71 × 171,009,111.51
  4. Step 4: Simplify right side
    310,236,024.69x = 73,213,380,131,184,128
  5. Step 5: Solve for x
    x = 73,213,380,131,184,128/310,236,024.69
  6. Step 6: Final answer
    x = 235,992,516.36

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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.