Home / 310,232,509.34-428,107,980.50-169,100,626.28

Finding the Fourth Proportional to 310,232,509.34, 428,107,980.50 and 169,100,626.28

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Solution

The fourth proportional to 310,232,509.34, 428,107,980.50 and 169,100,626.28 is: 233,351,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,232,509.34 : 428,107,980.50 = 169,100,626.28 : x
  2. Step 2: Convert to fraction form
    310,232,509.34/428,107,980.50 = 169,100,626.28/x
  3. Step 3: Cross multiply
    310,232,509.34x = 428,107,980.50 × 169,100,626.28
  4. Step 4: Simplify right side
    310,232,509.34x = 72,393,327,618,016,032
  5. Step 5: Solve for x
    x = 72,393,327,618,016,032/310,232,509.34
  6. Step 6: Final answer
    x = 233,351,842.37

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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.