Home / 28,474,029.86-39,294,148.88-15,421,289.42

Finding the Fourth Proportional to 28,474,029.86, 39,294,148.88 and 15,421,289.42

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Solution

The fourth proportional to 28,474,029.86, 39,294,148.88 and 15,421,289.42 is: 21,281,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474,029.86 : 39,294,148.88 = 15,421,289.42 : x
  2. Step 2: Convert to fraction form
    28,474,029.86/39,294,148.88 = 15,421,289.42/x
  3. Step 3: Cross multiply
    28,474,029.86x = 39,294,148.88 × 15,421,289.42
  4. Step 4: Simplify right side
    28,474,029.86x = 605,966,442,391,048.88
  5. Step 5: Solve for x
    x = 605,966,442,391,048.88/28,474,029.86
  6. Step 6: Final answer
    x = 21,281,372.72

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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.