Home / 103,959,416.89-143,465,687.22-56,915,696.42

Finding the Fourth Proportional to 103,959,416.89, 143,465,687.22 and 56,915,696.42

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Solution

The fourth proportional to 103,959,416.89, 143,465,687.22 and 56,915,696.42 is: 78,544,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,959,416.89 : 143,465,687.22 = 56,915,696.42 : x
  2. Step 2: Convert to fraction form
    103,959,416.89/143,465,687.22 = 56,915,696.42/x
  3. Step 3: Cross multiply
    103,959,416.89x = 143,465,687.22 × 56,915,696.42
  4. Step 4: Simplify right side
    103,959,416.89x = 8,165,449,500,534,296
  5. Step 5: Solve for x
    x = 8,165,449,500,534,296/103,959,416.89
  6. Step 6: Final answer
    x = 78,544,587.35

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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.