Home / 30,575,785.20-45,863,677.80-12,379,945.20

Finding the Fourth Proportional to 30,575,785.20, 45,863,677.80 and 12,379,945.20

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Solution

The fourth proportional to 30,575,785.20, 45,863,677.80 and 12,379,945.20 is: 18,569,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575,785.20 : 45,863,677.80 = 12,379,945.20 : x
  2. Step 2: Convert to fraction form
    30,575,785.20/45,863,677.80 = 12,379,945.20/x
  3. Step 3: Cross multiply
    30,575,785.20x = 45,863,677.80 × 12,379,945.20
  4. Step 4: Simplify right side
    30,575,785.20x = 567,789,817,834,456.50
  5. Step 5: Solve for x
    x = 567,789,817,834,456.50/30,575,785.20
  6. Step 6: Final answer
    x = 18,569,917.80

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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.