Home / 12,886,434.59-17,783,120.30-7,085,165.58

Finding the Fourth Proportional to 12,886,434.59, 17,783,120.30 and 7,085,165.58

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Solution

The fourth proportional to 12,886,434.59, 17,783,120.30 and 7,085,165.58 is: 9,777,440.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,434.59 : 17,783,120.30 = 7,085,165.58 : x
  2. Step 2: Convert to fraction form
    12,886,434.59/17,783,120.30 = 7,085,165.58/x
  3. Step 3: Cross multiply
    12,886,434.59x = 17,783,120.30 × 7,085,165.58
  4. Step 4: Simplify right side
    12,886,434.59x = 125,996,351,819,133.45
  5. Step 5: Solve for x
    x = 125,996,351,819,133.45/12,886,434.59
  6. Step 6: Final answer
    x = 9,777,440.84

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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.