Home / 209,014,331.23-288,172,018.83-171,198,182.69

Finding the Fourth Proportional to 209,014,331.23, 288,172,018.83 and 171,198,182.69

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Solution

The fourth proportional to 209,014,331.23, 288,172,018.83 and 171,198,182.69 is: 236,034,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,014,331.23 : 288,172,018.83 = 171,198,182.69 : x
  2. Step 2: Convert to fraction form
    209,014,331.23/288,172,018.83 = 171,198,182.69/x
  3. Step 3: Cross multiply
    209,014,331.23x = 288,172,018.83 × 171,198,182.69
  4. Step 4: Simplify right side
    209,014,331.23x = 49,334,525,925,882,896
  5. Step 5: Solve for x
    x = 49,334,525,925,882,896/209,014,331.23
  6. Step 6: Final answer
    x = 236,034,178.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.