Home / 51,011,654.20-76,537,986.90-20,721,887.80

Finding the Fourth Proportional to 51,011,654.20, 76,537,986.90 and 20,721,887.80

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Solution

The fourth proportional to 51,011,654.20, 76,537,986.90 and 20,721,887.80 is: 31,091,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,011,654.20 : 76,537,986.90 = 20,721,887.80 : x
  2. Step 2: Convert to fraction form
    51,011,654.20/76,537,986.90 = 20,721,887.80/x
  3. Step 3: Cross multiply
    51,011,654.20x = 76,537,986.90 × 20,721,887.80
  4. Step 4: Simplify right side
    51,011,654.20x = 1,586,011,576,979,670
  5. Step 5: Solve for x
    x = 1,586,011,576,979,670/51,011,654.20
  6. Step 6: Final answer
    x = 31,091,161.46

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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.