Home / 756,389,847.06-1,043,819,381.80-421,883,930.36

Finding the Fourth Proportional to 756,389,847.06, 1,043,819,381.80 and 421,883,930.36

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Solution

The fourth proportional to 756,389,847.06, 1,043,819,381.80 and 421,883,930.36 is: 582,200,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,389,847.06 : 1,043,819,381.80 = 421,883,930.36 : x
  2. Step 2: Convert to fraction form
    756,389,847.06/1,043,819,381.80 = 421,883,930.36/x
  3. Step 3: Cross multiply
    756,389,847.06x = 1,043,819,381.80 × 421,883,930.36
  4. Step 4: Simplify right side
    756,389,847.06x = 440,370,623,377,620,032
  5. Step 5: Solve for x
    x = 440,370,623,377,620,032/756,389,847.06
  6. Step 6: Final answer
    x = 582,200,600.77

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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.