Home / 502,984,221.35-694,118,258.84-279,961,116.80

Finding the Fourth Proportional to 502,984,221.35, 694,118,258.84 and 279,961,116.80

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Solution

The fourth proportional to 502,984,221.35, 694,118,258.84 and 279,961,116.80 is: 386,346,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,984,221.35 : 694,118,258.84 = 279,961,116.80 : x
  2. Step 2: Convert to fraction form
    502,984,221.35/694,118,258.84 = 279,961,116.80/x
  3. Step 3: Cross multiply
    502,984,221.35x = 694,118,258.84 × 279,961,116.80
  4. Step 4: Simplify right side
    502,984,221.35x = 194,326,122,934,718,080
  5. Step 5: Solve for x
    x = 194,326,122,934,718,080/502,984,221.35
  6. Step 6: Final answer
    x = 386,346,359.76

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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.