Home / 172,039,379.40-258,059,069.10-154,521,606.60

Finding the Fourth Proportional to 172,039,379.40, 258,059,069.10 and 154,521,606.60

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Solution

The fourth proportional to 172,039,379.40, 258,059,069.10 and 154,521,606.60 is: 231,782,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,039,379.40 : 258,059,069.10 = 154,521,606.60 : x
  2. Step 2: Convert to fraction form
    172,039,379.40/258,059,069.10 = 154,521,606.60/x
  3. Step 3: Cross multiply
    172,039,379.40x = 258,059,069.10 × 154,521,606.60
  4. Step 4: Simplify right side
    172,039,379.40x = 39,875,701,955,032,416
  5. Step 5: Solve for x
    x = 39,875,701,955,032,416/172,039,379.40
  6. Step 6: Final answer
    x = 231,782,409.90

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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.