Home / 813,427,422.33-1,122,652,546.89-496,071,782.63

Finding the Fourth Proportional to 813,427,422.33, 1,122,652,546.89 and 496,071,782.63

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Solution

The fourth proportional to 813,427,422.33, 1,122,652,546.89 and 496,071,782.63 is: 684,653,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,427,422.33 : 1,122,652,546.89 = 496,071,782.63 : x
  2. Step 2: Convert to fraction form
    813,427,422.33/1,122,652,546.89 = 496,071,782.63/x
  3. Step 3: Cross multiply
    813,427,422.33x = 1,122,652,546.89 × 496,071,782.63
  4. Step 4: Simplify right side
    813,427,422.33x = 556,916,250,204,218,752
  5. Step 5: Solve for x
    x = 556,916,250,204,218,752/813,427,422.33
  6. Step 6: Final answer
    x = 684,653,891.57

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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.