Home / 728,329,882.35-1,004,865,776.39-445,777,763.79

Finding the Fourth Proportional to 728,329,882.35, 1,004,865,776.39 and 445,777,763.79

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Solution

The fourth proportional to 728,329,882.35, 1,004,865,776.39 and 445,777,763.79 is: 615,032,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,329,882.35 : 1,004,865,776.39 = 445,777,763.79 : x
  2. Step 2: Convert to fraction form
    728,329,882.35/1,004,865,776.39 = 445,777,763.79/x
  3. Step 3: Cross multiply
    728,329,882.35x = 1,004,865,776.39 × 445,777,763.79
  4. Step 4: Simplify right side
    728,329,882.35x = 447,946,818,713,119,104
  5. Step 5: Solve for x
    x = 447,946,818,713,119,104/728,329,882.35
  6. Step 6: Final answer
    x = 615,032,871.18

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Double scale
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1.5x scale

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.