Home / 31,372,080.40-47,048,789.40-12,191,798.80

Finding the Fourth Proportional to 31,372,080.40, 47,048,789.40 and 12,191,798.80

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Solution

The fourth proportional to 31,372,080.40, 47,048,789.40 and 12,191,798.80 is: 18,284,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372,080.40 : 47,048,789.40 = 12,191,798.80 : x
  2. Step 2: Convert to fraction form
    31,372,080.40/47,048,789.40 = 12,191,798.80/x
  3. Step 3: Cross multiply
    31,372,080.40x = 47,048,789.40 × 12,191,798.80
  4. Step 4: Simplify right side
    31,372,080.40x = 573,609,374,148,372.75
  5. Step 5: Solve for x
    x = 573,609,374,148,372.75/31,372,080.40
  6. Step 6: Final answer
    x = 18,284,071.91

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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.