Home / 510,154,933.72-765,353,826.51-165,108,561.16

Finding the Fourth Proportional to 510,154,933.72, 765,353,826.51 and 165,108,561.16

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Solution

The fourth proportional to 510,154,933.72, 765,353,826.51 and 165,108,561.16 is: 247,702,140.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,154,933.72 : 765,353,826.51 = 165,108,561.16 : x
  2. Step 2: Convert to fraction form
    510,154,933.72/765,353,826.51 = 165,108,561.16/x
  3. Step 3: Cross multiply
    510,154,933.72x = 765,353,826.51 × 165,108,561.16
  4. Step 4: Simplify right side
    510,154,933.72x = 126,366,469,073,366,368
  5. Step 5: Solve for x
    x = 126,366,469,073,366,368/510,154,933.72
  6. Step 6: Final answer
    x = 247,702,140.51

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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.