Home / 78,809,262.03-118,213,895.77-57,380,232.30

Finding the Fourth Proportional to 78,809,262.03, 118,213,895.77 and 57,380,232.30

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Solution

The fourth proportional to 78,809,262.03, 118,213,895.77 and 57,380,232.30 is: 86,070,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,809,262.03 : 118,213,895.77 = 57,380,232.30 : x
  2. Step 2: Convert to fraction form
    78,809,262.03/118,213,895.77 = 57,380,232.30/x
  3. Step 3: Cross multiply
    78,809,262.03x = 118,213,895.77 × 57,380,232.30
  4. Step 4: Simplify right side
    78,809,262.03x = 6,783,140,800,370,587
  5. Step 5: Solve for x
    x = 6,783,140,800,370,587/78,809,262.03
  6. Step 6: Final answer
    x = 86,070,350.44

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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.