Home / 1,119,745,107.20-1,679,617,660.80-847,647,315.20

Finding the Fourth Proportional to 1,119,745,107.20, 1,679,617,660.80 and 847,647,315.20

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Solution

The fourth proportional to 1,119,745,107.20, 1,679,617,660.80 and 847,647,315.20 is: 1,271,470,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,745,107.20 : 1,679,617,660.80 = 847,647,315.20 : x
  2. Step 2: Convert to fraction form
    1,119,745,107.20/1,679,617,660.80 = 847,647,315.20/x
  3. Step 3: Cross multiply
    1,119,745,107.20x = 1,679,617,660.80 × 847,647,315.20
  4. Step 4: Simplify right side
    1,119,745,107.20x = 1,423,723,400,739,624,448
  5. Step 5: Solve for x
    x = 1,423,723,400,739,624,448/1,119,745,107.20
  6. Step 6: Final answer
    x = 1,271,470,972.80

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Double scale
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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.