Home / 310,716,719.52-428,789,982.24-169,589,240.16

Finding the Fourth Proportional to 310,716,719.52, 428,789,982.24 and 169,589,240.16

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Solution

The fourth proportional to 310,716,719.52, 428,789,982.24 and 169,589,240.16 is: 234,033,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,716,719.52 : 428,789,982.24 = 169,589,240.16 : x
  2. Step 2: Convert to fraction form
    310,716,719.52/428,789,982.24 = 169,589,240.16/x
  3. Step 3: Cross multiply
    310,716,719.52x = 428,789,982.24 × 169,589,240.16
  4. Step 4: Simplify right side
    310,716,719.52x = 72,718,167,276,301,488
  5. Step 5: Solve for x
    x = 72,718,167,276,301,488/310,716,719.52
  6. Step 6: Final answer
    x = 234,033,647.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.