Home / 78,171,379.37-117,180,817.93-37,219,815.30

Finding the Fourth Proportional to 78,171,379.37, 117,180,817.93 and 37,219,815.30

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Solution

The fourth proportional to 78,171,379.37, 117,180,817.93 and 37,219,815.30 is: 55,793,417.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,171,379.37 : 117,180,817.93 = 37,219,815.30 : x
  2. Step 2: Convert to fraction form
    78,171,379.37/117,180,817.93 = 37,219,815.30/x
  3. Step 3: Cross multiply
    78,171,379.37x = 117,180,817.93 × 37,219,815.30
  4. Step 4: Simplify right side
    78,171,379.37x = 4,361,448,400,057,528
  5. Step 5: Solve for x
    x = 4,361,448,400,057,528/78,171,379.37
  6. Step 6: Final answer
    x = 55,793,417.43

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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.