Home / 12,912,944.85-17,820,669.48-7,111,725.12

Finding the Fourth Proportional to 12,912,944.85, 17,820,669.48 and 7,111,725.12

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Solution

The fourth proportional to 12,912,944.85, 17,820,669.48 and 7,111,725.12 is: 9,814,624.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,944.85 : 17,820,669.48 = 7,111,725.12 : x
  2. Step 2: Convert to fraction form
    12,912,944.85/17,820,669.48 = 7,111,725.12/x
  3. Step 3: Cross multiply
    12,912,944.85x = 17,820,669.48 × 7,111,725.12
  4. Step 4: Simplify right side
    12,912,944.85x = 126,735,702,796,133.34
  5. Step 5: Solve for x
    x = 126,735,702,796,133.34/12,912,944.85
  6. Step 6: Final answer
    x = 9,814,624.34

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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.