Home / 1,264,619,904.12-1,745,358,103.00-728,668,960.88

Finding the Fourth Proportional to 1,264,619,904.12, 1,745,358,103.00 and 728,668,960.88

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Solution

The fourth proportional to 1,264,619,904.12, 1,745,358,103.00 and 728,668,960.88 is: 1,005,668,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,619,904.12 : 1,745,358,103.00 = 728,668,960.88 : x
  2. Step 2: Convert to fraction form
    1,264,619,904.12/1,745,358,103.00 = 728,668,960.88/x
  3. Step 3: Cross multiply
    1,264,619,904.12x = 1,745,358,103.00 × 728,668,960.88
  4. Step 4: Simplify right side
    1,264,619,904.12x = 1,271,788,275,278,579,968
  5. Step 5: Solve for x
    x = 1,271,788,275,278,579,968/1,264,619,904.12
  6. Step 6: Final answer
    x = 1,005,668,399.76

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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.