Home / 638,330,625.51-957,416,689.49-172,028,529.24

Finding the Fourth Proportional to 638,330,625.51, 957,416,689.49 and 172,028,529.24

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Solution

The fourth proportional to 638,330,625.51, 957,416,689.49 and 172,028,529.24 is: 258,021,436.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,330,625.51 : 957,416,689.49 = 172,028,529.24 : x
  2. Step 2: Convert to fraction form
    638,330,625.51/957,416,689.49 = 172,028,529.24/x
  3. Step 3: Cross multiply
    638,330,625.51x = 957,416,689.49 × 172,028,529.24
  4. Step 4: Simplify right side
    638,330,625.51x = 164,702,984,961,934,336
  5. Step 5: Solve for x
    x = 164,702,984,961,934,336/638,330,625.51
  6. Step 6: Final answer
    x = 258,021,436.51

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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.