Home / 172,204,530.36-258,307,746.88-42,812,140.65

Finding the Fourth Proportional to 172,204,530.36, 258,307,746.88 and 42,812,140.65

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Solution

The fourth proportional to 172,204,530.36, 258,307,746.88 and 42,812,140.65 is: 64,218,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,204,530.36 : 258,307,746.88 = 42,812,140.65 : x
  2. Step 2: Convert to fraction form
    172,204,530.36/258,307,746.88 = 42,812,140.65/x
  3. Step 3: Cross multiply
    172,204,530.36x = 258,307,746.88 × 42,812,140.65
  4. Step 4: Simplify right side
    172,204,530.36x = 11,058,707,589,415,962
  5. Step 5: Solve for x
    x = 11,058,707,589,415,962/172,204,530.36
  6. Step 6: Final answer
    x = 64,218,447.49

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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.