Home / 77,312,869.60-115,968,843.60-19,805,029.60

Finding the Fourth Proportional to 77,312,869.60, 115,968,843.60 and 19,805,029.60

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Solution

The fourth proportional to 77,312,869.60, 115,968,843.60 and 19,805,029.60 is: 29,707,426.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,312,869.60 : 115,968,843.60 = 19,805,029.60 : x
  2. Step 2: Convert to fraction form
    77,312,869.60/115,968,843.60 = 19,805,029.60/x
  3. Step 3: Cross multiply
    77,312,869.60x = 115,968,843.60 × 19,805,029.60
  4. Step 4: Simplify right side
    77,312,869.60x = 2,296,766,380,175,770.50
  5. Step 5: Solve for x
    x = 2,296,766,380,175,770.50/77,312,869.60
  6. Step 6: Final answer
    x = 29,707,426.36

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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.