Home / 521,783,669.80-782,774,259.90-172,049,827.24

Finding the Fourth Proportional to 521,783,669.80, 782,774,259.90 and 172,049,827.24

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Solution

The fourth proportional to 521,783,669.80, 782,774,259.90 and 172,049,827.24 is: 258,107,303.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,783,669.80 : 782,774,259.90 = 172,049,827.24 : x
  2. Step 2: Convert to fraction form
    521,783,669.80/782,774,259.90 = 172,049,827.24/x
  3. Step 3: Cross multiply
    521,783,669.80x = 782,774,259.90 × 172,049,827.24
  4. Step 4: Simplify right side
    521,783,669.80x = 134,676,176,183,713,856
  5. Step 5: Solve for x
    x = 134,676,176,183,713,856/521,783,669.80
  6. Step 6: Final answer
    x = 258,107,303.81

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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.