Home / 31,504,814.40-47,257,221.60-20,158,075.20

Finding the Fourth Proportional to 31,504,814.40, 47,257,221.60 and 20,158,075.20

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Solution

The fourth proportional to 31,504,814.40, 47,257,221.60 and 20,158,075.20 is: 30,237,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504,814.40 : 47,257,221.60 = 20,158,075.20 : x
  2. Step 2: Convert to fraction form
    31,504,814.40/47,257,221.60 = 20,158,075.20/x
  3. Step 3: Cross multiply
    31,504,814.40x = 47,257,221.60 × 20,158,075.20
  4. Step 4: Simplify right side
    31,504,814.40x = 952,614,626,755,864.38
  5. Step 5: Solve for x
    x = 952,614,626,755,864.38/31,504,814.40
  6. Step 6: Final answer
    x = 30,237,112.80

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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.