Home / 538,368,218.28-743,196,356.46-315,319,109.04

Finding the Fourth Proportional to 538,368,218.28, 743,196,356.46 and 315,319,109.04

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Solution

The fourth proportional to 538,368,218.28, 743,196,356.46 and 315,319,109.04 is: 435,285,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,368,218.28 : 743,196,356.46 = 315,319,109.04 : x
  2. Step 2: Convert to fraction form
    538,368,218.28/743,196,356.46 = 315,319,109.04/x
  3. Step 3: Cross multiply
    538,368,218.28x = 743,196,356.46 × 315,319,109.04
  4. Step 4: Simplify right side
    538,368,218.28x = 234,344,012,960,741,472
  5. Step 5: Solve for x
    x = 234,344,012,960,741,472/538,368,218.28
  6. Step 6: Final answer
    x = 435,285,748.68

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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.