Home / 81,583,031.58-122,338,636.80-43,235,561.22

Finding the Fourth Proportional to 81,583,031.58, 122,338,636.80 and 43,235,561.22

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Solution

The fourth proportional to 81,583,031.58, 122,338,636.80 and 43,235,561.22 is: 64,834,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,583,031.58 : 122,338,636.80 = 43,235,561.22 : x
  2. Step 2: Convert to fraction form
    81,583,031.58/122,338,636.80 = 43,235,561.22/x
  3. Step 3: Cross multiply
    81,583,031.58x = 122,338,636.80 × 43,235,561.22
  4. Step 4: Simplify right side
    81,583,031.58x = 5,289,379,620,937,745
  5. Step 5: Solve for x
    x = 5,289,379,620,937,745/81,583,031.58
  6. Step 6: Final answer
    x = 64,834,310.74

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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.