Home / 420,171,281.76-579,933,114.56-246,387,012.96

Finding the Fourth Proportional to 420,171,281.76, 579,933,114.56 and 246,387,012.96

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Solution

The fourth proportional to 420,171,281.76, 579,933,114.56 and 246,387,012.96 is: 340,070,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,171,281.76 : 579,933,114.56 = 246,387,012.96 : x
  2. Step 2: Convert to fraction form
    420,171,281.76/579,933,114.56 = 246,387,012.96/x
  3. Step 3: Cross multiply
    420,171,281.76x = 579,933,114.56 × 246,387,012.96
  4. Step 4: Simplify right side
    420,171,281.76x = 142,887,987,813,027,872
  5. Step 5: Solve for x
    x = 142,887,987,813,027,872/420,171,281.76
  6. Step 6: Final answer
    x = 340,070,809.25

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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.