Home / 1,321,388,564.64-1,823,564,164.21-756,982,528.53

Finding the Fourth Proportional to 1,321,388,564.64, 1,823,564,164.21 and 756,982,528.53

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Solution

The fourth proportional to 1,321,388,564.64, 1,823,564,164.21 and 756,982,528.53 is: 1,044,663,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,388,564.64 : 1,823,564,164.21 = 756,982,528.53 : x
  2. Step 2: Convert to fraction form
    1,321,388,564.64/1,823,564,164.21 = 756,982,528.53/x
  3. Step 3: Cross multiply
    1,321,388,564.64x = 1,823,564,164.21 × 756,982,528.53
  4. Step 4: Simplify right side
    1,321,388,564.64x = 1,380,406,211,955,890,176
  5. Step 5: Solve for x
    x = 1,380,406,211,955,890,176/1,321,388,564.64
  6. Step 6: Final answer
    x = 1,044,663,355.58

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Double scale
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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.