Home / 1,321,388,563.39-1,823,564,162.48-756,982,527.28

Finding the Fourth Proportional to 1,321,388,563.39, 1,823,564,162.48 and 756,982,527.28

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Solution

The fourth proportional to 1,321,388,563.39, 1,823,564,162.48 and 756,982,527.28 is: 1,044,663,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,388,563.39 : 1,823,564,162.48 = 756,982,527.28 : x
  2. Step 2: Convert to fraction form
    1,321,388,563.39/1,823,564,162.48 = 756,982,527.28/x
  3. Step 3: Cross multiply
    1,321,388,563.39x = 1,823,564,162.48 × 756,982,527.28
  4. Step 4: Simplify right side
    1,321,388,563.39x = 1,380,406,208,371,346,944
  5. Step 5: Solve for x
    x = 1,380,406,208,371,346,944/1,321,388,563.39
  6. Step 6: Final answer
    x = 1,044,663,353.85

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Double scale
Find fourth proportional to 1,321,388,564.39, 1,823,564,163.86 and 756,982,528.28
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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.