Home / 31,409,938.80-47,079,916.20-12,234,322.80

Finding the Fourth Proportional to 31,409,938.80, 47,079,916.20 and 12,234,322.80

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Solution

The fourth proportional to 31,409,938.80, 47,079,916.20 and 12,234,322.80 is: 18,337,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409,938.80 : 47,079,916.20 = 12,234,322.80 : x
  2. Step 2: Convert to fraction form
    31,409,938.80/47,079,916.20 = 12,234,322.80/x
  3. Step 3: Cross multiply
    31,409,938.80x = 47,079,916.20 × 12,234,322.80
  4. Step 4: Simplify right side
    31,409,938.80x = 575,990,892,187,749.38
  5. Step 5: Solve for x
    x = 575,990,892,187,749.38/31,409,938.80
  6. Step 6: Final answer
    x = 18,337,854.65

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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.