Home / 1,119,745,411.20-1,679,618,116.80-847,647,619.20

Finding the Fourth Proportional to 1,119,745,411.20, 1,679,618,116.80 and 847,647,619.20

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Solution

The fourth proportional to 1,119,745,411.20, 1,679,618,116.80 and 847,647,619.20 is: 1,271,471,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,745,411.20 : 1,679,618,116.80 = 847,647,619.20 : x
  2. Step 2: Convert to fraction form
    1,119,745,411.20/1,679,618,116.80 = 847,647,619.20/x
  3. Step 3: Cross multiply
    1,119,745,411.20x = 1,679,618,116.80 × 847,647,619.20
  4. Step 4: Simplify right side
    1,119,745,411.20x = 1,423,724,297,870,707,456
  5. Step 5: Solve for x
    x = 1,423,724,297,870,707,456/1,119,745,411.20
  6. Step 6: Final answer
    x = 1,271,471,428.80

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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.