Home / 128,469,389.58-192,711,510.59-36,345,410.80

Finding the Fourth Proportional to 128,469,389.58, 192,711,510.59 and 36,345,410.80

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Solution

The fourth proportional to 128,469,389.58, 192,711,510.59 and 36,345,410.80 is: 54,520,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,469,389.58 : 192,711,510.59 = 36,345,410.80 : x
  2. Step 2: Convert to fraction form
    128,469,389.58/192,711,510.59 = 36,345,410.80/x
  3. Step 3: Cross multiply
    128,469,389.58x = 192,711,510.59 × 36,345,410.80
  4. Step 4: Simplify right side
    128,469,389.58x = 7,004,179,017,618,595
  5. Step 5: Solve for x
    x = 7,004,179,017,618,595/128,469,389.58
  6. Step 6: Final answer
    x = 54,520,217.15

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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.