Home / 31,409,907.80-47,079,869.70-12,234,291.80

Finding the Fourth Proportional to 31,409,907.80, 47,079,869.70 and 12,234,291.80

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Solution

The fourth proportional to 31,409,907.80, 47,079,869.70 and 12,234,291.80 is: 18,337,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409,907.80 : 47,079,869.70 = 12,234,291.80 : x
  2. Step 2: Convert to fraction form
    31,409,907.80/47,079,869.70 = 12,234,291.80/x
  3. Step 3: Cross multiply
    31,409,907.80x = 47,079,869.70 × 12,234,291.80
  4. Step 4: Simplify right side
    31,409,907.80x = 575,988,863,815,778.50
  5. Step 5: Solve for x
    x = 575,988,863,815,778.50/31,409,907.80
  6. Step 6: Final answer
    x = 18,337,808.17

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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.