Home / 521,236,083.45-719,319,841.98-306,669,705.63

Finding the Fourth Proportional to 521,236,083.45, 719,319,841.98 and 306,669,705.63

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Solution

The fourth proportional to 521,236,083.45, 719,319,841.98 and 306,669,705.63 is: 423,212,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,236,083.45 : 719,319,841.98 = 306,669,705.63 : x
  2. Step 2: Convert to fraction form
    521,236,083.45/719,319,841.98 = 306,669,705.63/x
  3. Step 3: Cross multiply
    521,236,083.45x = 719,319,841.98 × 306,669,705.63
  4. Step 4: Simplify right side
    521,236,083.45x = 220,593,604,194,019,840
  5. Step 5: Solve for x
    x = 220,593,604,194,019,840/521,236,083.45
  6. Step 6: Final answer
    x = 423,212,458.22

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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.