Home / 43,157,782.20-64,630,385.10-20,412,107.40

Finding the Fourth Proportional to 43,157,782.20, 64,630,385.10 and 20,412,107.40

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Solution

The fourth proportional to 43,157,782.20, 64,630,385.10 and 20,412,107.40 is: 30,567,890.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,157,782.20 : 64,630,385.10 = 20,412,107.40 : x
  2. Step 2: Convert to fraction form
    43,157,782.20/64,630,385.10 = 20,412,107.40/x
  3. Step 3: Cross multiply
    43,157,782.20x = 64,630,385.10 × 20,412,107.40
  4. Step 4: Simplify right side
    43,157,782.20x = 1,319,242,361,964,559.75
  5. Step 5: Solve for x
    x = 1,319,242,361,964,559.75/43,157,782.20
  6. Step 6: Final answer
    x = 30,567,890.53

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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.