Home / 9,145,829.12-12,620,334.80-5,279,595.84

Finding the Fourth Proportional to 9,145,829.12, 12,620,334.80 and 5,279,595.84

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Solution

The fourth proportional to 9,145,829.12, 12,620,334.80 and 5,279,595.84 is: 7,285,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145,829.12 : 12,620,334.80 = 5,279,595.84 : x
  2. Step 2: Convert to fraction form
    9,145,829.12/12,620,334.80 = 5,279,595.84/x
  3. Step 3: Cross multiply
    9,145,829.12x = 12,620,334.80 × 5,279,595.84
  4. Step 4: Simplify right side
    9,145,829.12x = 66,630,267,109,487.23
  5. Step 5: Solve for x
    x = 66,630,267,109,487.23/9,145,829.12
  6. Step 6: Final answer
    x = 7,285,317.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.