Home / 1,136,192,979.20-1,704,289,468.80-409,087,212.80

Finding the Fourth Proportional to 1,136,192,979.20, 1,704,289,468.80 and 409,087,212.80

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Solution

The fourth proportional to 1,136,192,979.20, 1,704,289,468.80 and 409,087,212.80 is: 613,630,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,192,979.20 : 1,704,289,468.80 = 409,087,212.80 : x
  2. Step 2: Convert to fraction form
    1,136,192,979.20/1,704,289,468.80 = 409,087,212.80/x
  3. Step 3: Cross multiply
    1,136,192,979.20x = 1,704,289,468.80 × 409,087,212.80
  4. Step 4: Simplify right side
    1,136,192,979.20x = 697,203,028,595,784,576
  5. Step 5: Solve for x
    x = 697,203,028,595,784,576/1,136,192,979.20
  6. Step 6: Final answer
    x = 613,630,819.20

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1.5x scale

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.