Home / 168,863,763,172.89-253,338,518,576.04-78,170,563,811.37

Finding the Fourth Proportional to 168,863,763,172.89, 253,338,518,576.04 and 78,170,563,811.37

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Solution

The fourth proportional to 168,863,763,172.89, 253,338,518,576.04 and 78,170,563,811.37 is: 117,275,692,902.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,863,763,172.89 : 253,338,518,576.04 = 78,170,563,811.37 : x
  2. Step 2: Convert to fraction form
    168,863,763,172.89/253,338,518,576.04 = 78,170,563,811.37/x
  3. Step 3: Cross multiply
    168,863,763,172.89x = 253,338,518,576.04 × 78,170,563,811.37
  4. Step 4: Simplify right side
    168,863,763,172.89x = 19,803,614,832,226,276,999,168
  5. Step 5: Solve for x
    x = 19,803,614,832,226,276,999,168/168,863,763,172.89
  6. Step 6: Final answer
    x = 117,275,692,902.51

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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.