Home / 521,783,668.80-782,774,258.40-172,049,826.24

Finding the Fourth Proportional to 521,783,668.80, 782,774,258.40 and 172,049,826.24

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Solution

The fourth proportional to 521,783,668.80, 782,774,258.40 and 172,049,826.24 is: 258,107,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,783,668.80 : 782,774,258.40 = 172,049,826.24 : x
  2. Step 2: Convert to fraction form
    521,783,668.80/782,774,258.40 = 172,049,826.24/x
  3. Step 3: Cross multiply
    521,783,668.80x = 782,774,258.40 × 172,049,826.24
  4. Step 4: Simplify right side
    521,783,668.80x = 134,676,175,142,864,864
  5. Step 5: Solve for x
    x = 134,676,175,142,864,864/521,783,668.80
  6. Step 6: Final answer
    x = 258,107,302.31

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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.