Home / 31,502,945.40-47,159,939.70-18,716,868.60

Finding the Fourth Proportional to 31,502,945.40, 47,159,939.70 and 18,716,868.60

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Solution

The fourth proportional to 31,502,945.40, 47,159,939.70 and 18,716,868.60 is: 28,019,170.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,502,945.40 : 47,159,939.70 = 18,716,868.60 : x
  2. Step 2: Convert to fraction form
    31,502,945.40/47,159,939.70 = 18,716,868.60/x
  3. Step 3: Cross multiply
    31,502,945.40x = 47,159,939.70 × 18,716,868.60
  4. Step 4: Simplify right side
    31,502,945.40x = 882,686,394,548,823.50
  5. Step 5: Solve for x
    x = 882,686,394,548,823.50/31,502,945.40
  6. Step 6: Final answer
    x = 28,019,170.38

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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.