Home / 219,136,540.80-328,704,811.20-105,890,332.80

Finding the Fourth Proportional to 219,136,540.80, 328,704,811.20 and 105,890,332.80

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Solution

The fourth proportional to 219,136,540.80, 328,704,811.20 and 105,890,332.80 is: 158,835,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,136,540.80 : 328,704,811.20 = 105,890,332.80 : x
  2. Step 2: Convert to fraction form
    219,136,540.80/328,704,811.20 = 105,890,332.80/x
  3. Step 3: Cross multiply
    219,136,540.80x = 328,704,811.20 × 105,890,332.80
  4. Step 4: Simplify right side
    219,136,540.80x = 34,806,661,850,929,164
  5. Step 5: Solve for x
    x = 34,806,661,850,929,164/219,136,540.80
  6. Step 6: Final answer
    x = 158,835,499.20

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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.