Home / 78,536,819.49-117,646,012.89-36,412,342.80

Finding the Fourth Proportional to 78,536,819.49, 117,646,012.89 and 36,412,342.80

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Solution

The fourth proportional to 78,536,819.49, 117,646,012.89 and 36,412,342.80 is: 54,544,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,536,819.49 : 117,646,012.89 = 36,412,342.80 : x
  2. Step 2: Convert to fraction form
    78,536,819.49/117,646,012.89 = 36,412,342.80/x
  3. Step 3: Cross multiply
    78,536,819.49x = 117,646,012.89 × 36,412,342.80
  4. Step 4: Simplify right side
    78,536,819.49x = 4,283,766,950,403,898.50
  5. Step 5: Solve for x
    x = 4,283,766,950,403,898.50/78,536,819.49
  6. Step 6: Final answer
    x = 54,544,696.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.