Home / 221,558,814-332,041,154.22-172,433,986.38

Finding the Fourth Proportional to 221,558,814, 332,041,154.22 and 172,433,986.38

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Solution

The fourth proportional to 221,558,814, 332,041,154.22 and 172,433,986.38 is: 258,419,779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,558,814 : 332,041,154.22 = 172,433,986.38 : x
  2. Step 2: Convert to fraction form
    221,558,814/332,041,154.22 = 172,433,986.38/x
  3. Step 3: Cross multiply
    221,558,814x = 332,041,154.22 × 172,433,986.38
  4. Step 4: Simplify right side
    221,558,814x = 57,255,179,864,370,960
  5. Step 5: Solve for x
    x = 57,255,179,864,370,960/221,558,814
  6. Step 6: Final answer
    x = 258,419,779.52

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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.