Home / 756,211,530.82-1,043,590,365.34-421,680,788.25

Finding the Fourth Proportional to 756,211,530.82, 1,043,590,365.34 and 421,680,788.25

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Solution

The fourth proportional to 756,211,530.82, 1,043,590,365.34 and 421,680,788.25 is: 581,929,777.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,211,530.82 : 1,043,590,365.34 = 421,680,788.25 : x
  2. Step 2: Convert to fraction form
    756,211,530.82/1,043,590,365.34 = 421,680,788.25/x
  3. Step 3: Cross multiply
    756,211,530.82x = 1,043,590,365.34 × 421,680,788.25
  4. Step 4: Simplify right side
    756,211,530.82x = 440,062,007,859,350,336
  5. Step 5: Solve for x
    x = 440,062,007,859,350,336/756,211,530.82
  6. Step 6: Final answer
    x = 581,929,777.49

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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.