Home / 1,264,619,905.62-1,745,358,105.08-728,668,962.38

Finding the Fourth Proportional to 1,264,619,905.62, 1,745,358,105.08 and 728,668,962.38

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Solution

The fourth proportional to 1,264,619,905.62, 1,745,358,105.08 and 728,668,962.38 is: 1,005,668,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,619,905.62 : 1,745,358,105.08 = 728,668,962.38 : x
  2. Step 2: Convert to fraction form
    1,264,619,905.62/1,745,358,105.08 = 728,668,962.38/x
  3. Step 3: Cross multiply
    1,264,619,905.62x = 1,745,358,105.08 × 728,668,962.38
  4. Step 4: Simplify right side
    1,264,619,905.62x = 1,271,788,279,410,886,656
  5. Step 5: Solve for x
    x = 1,271,788,279,410,886,656/1,264,619,905.62
  6. Step 6: Final answer
    x = 1,005,668,401.83

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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.