Home / 30,147,306.82-45,221,240.10-8,581,907.72

Finding the Fourth Proportional to 30,147,306.82, 45,221,240.10 and 8,581,907.72

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Solution

The fourth proportional to 30,147,306.82, 45,221,240.10 and 8,581,907.72 is: 12,872,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147,306.82 : 45,221,240.10 = 8,581,907.72 : x
  2. Step 2: Convert to fraction form
    30,147,306.82/45,221,240.10 = 8,581,907.72/x
  3. Step 3: Cross multiply
    30,147,306.82x = 45,221,240.10 × 8,581,907.72
  4. Step 4: Simplify right side
    30,147,306.82x = 388,084,509,667,398.81
  5. Step 5: Solve for x
    x = 388,084,509,667,398.81/30,147,306.82
  6. Step 6: Final answer
    x = 12,872,941.26

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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.