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Finding the Fourth Proportional to 1,355,630,678.00, 1,870,667,668.09 and 760,800,281.27

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Solution

The fourth proportional to 1,355,630,678.00, 1,870,667,668.09 and 760,800,281.27 is: 1,049,846,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,630,678.00 : 1,870,667,668.09 = 760,800,281.27 : x
  2. Step 2: Convert to fraction form
    1,355,630,678.00/1,870,667,668.09 = 760,800,281.27/x
  3. Step 3: Cross multiply
    1,355,630,678.00x = 1,870,667,668.09 × 760,800,281.27
  4. Step 4: Simplify right side
    1,355,630,678.00x = 1,423,204,488,034,311,680
  5. Step 5: Solve for x
    x = 1,423,204,488,034,311,680/1,355,630,678.00
  6. Step 6: Final answer
    x = 1,049,846,769.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.