Home / 78,199,448.64-107,910,053.28-43,389,933.12

Finding the Fourth Proportional to 78,199,448.64, 107,910,053.28 and 43,389,933.12

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Solution

The fourth proportional to 78,199,448.64, 107,910,053.28 and 43,389,933.12 is: 59,875,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,199,448.64 : 107,910,053.28 = 43,389,933.12 : x
  2. Step 2: Convert to fraction form
    78,199,448.64/107,910,053.28 = 43,389,933.12/x
  3. Step 3: Cross multiply
    78,199,448.64x = 107,910,053.28 × 43,389,933.12
  4. Step 4: Simplify right side
    78,199,448.64x = 4,682,209,994,794,836
  5. Step 5: Solve for x
    x = 4,682,209,994,794,836/78,199,448.64
  6. Step 6: Final answer
    x = 59,875,230.28

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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.