Home / 168,236,521.20-252,378,401.40-53,209,069.20

Finding the Fourth Proportional to 168,236,521.20, 252,378,401.40 and 53,209,069.20

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Solution

The fourth proportional to 168,236,521.20, 252,378,401.40 and 53,209,069.20 is: 79,821,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,236,521.20 : 252,378,401.40 = 53,209,069.20 : x
  2. Step 2: Convert to fraction form
    168,236,521.20/252,378,401.40 = 53,209,069.20/x
  3. Step 3: Cross multiply
    168,236,521.20x = 252,378,401.40 × 53,209,069.20
  4. Step 4: Simplify right side
    168,236,521.20x = 13,428,819,824,677,978
  5. Step 5: Solve for x
    x = 13,428,819,824,677,978/168,236,521.20
  6. Step 6: Final answer
    x = 79,821,074.10

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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.