Home / 12,784,004.20-19,176,006.30-8,006,429.80

Finding the Fourth Proportional to 12,784,004.20, 19,176,006.30 and 8,006,429.80

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Solution

The fourth proportional to 12,784,004.20, 19,176,006.30 and 8,006,429.80 is: 12,009,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784,004.20 : 19,176,006.30 = 8,006,429.80 : x
  2. Step 2: Convert to fraction form
    12,784,004.20/19,176,006.30 = 8,006,429.80/x
  3. Step 3: Cross multiply
    12,784,004.20x = 19,176,006.30 × 8,006,429.80
  4. Step 4: Simplify right side
    12,784,004.20x = 153,531,348,285,307.75
  5. Step 5: Solve for x
    x = 153,531,348,285,307.75/12,784,004.20
  6. Step 6: Final answer
    x = 12,009,644.70

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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.