Home / 28,405,704.61-42,602,372.13-7,655,658.42

Finding the Fourth Proportional to 28,405,704.61, 42,602,372.13 and 7,655,658.42

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Solution

The fourth proportional to 28,405,704.61, 42,602,372.13 and 7,655,658.42 is: 11,481,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,704.61 : 42,602,372.13 = 7,655,658.42 : x
  2. Step 2: Convert to fraction form
    28,405,704.61/42,602,372.13 = 7,655,658.42/x
  3. Step 3: Cross multiply
    28,405,704.61x = 42,602,372.13 × 7,655,658.42
  4. Step 4: Simplify right side
    28,405,704.61x = 326,149,208,909,007.88
  5. Step 5: Solve for x
    x = 326,149,208,909,007.88/28,405,704.61
  6. Step 6: Final answer
    x = 11,481,820.76

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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.