Home / 31,939,601.40-47,929,085.10-12,768,359.40

Finding the Fourth Proportional to 31,939,601.40, 47,929,085.10 and 12,768,359.40

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Solution

The fourth proportional to 31,939,601.40, 47,929,085.10 and 12,768,359.40 is: 19,160,407.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,939,601.40 : 47,929,085.10 = 12,768,359.40 : x
  2. Step 2: Convert to fraction form
    31,939,601.40/47,929,085.10 = 12,768,359.40/x
  3. Step 3: Cross multiply
    31,939,601.40x = 47,929,085.10 × 12,768,359.40
  4. Step 4: Simplify right side
    31,939,601.40x = 611,975,784,269,985
  5. Step 5: Solve for x
    x = 611,975,784,269,985/31,939,601.40
  6. Step 6: Final answer
    x = 19,160,407.69

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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.