Home / 1,392,023,959.31-1,921,029,471.50-756,981,592.31

Finding the Fourth Proportional to 1,392,023,959.31, 1,921,029,471.50 and 756,981,592.31

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Solution

The fourth proportional to 1,392,023,959.31, 1,921,029,471.50 and 756,981,592.31 is: 1,044,654,395.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,023,959.31 : 1,921,029,471.50 = 756,981,592.31 : x
  2. Step 2: Convert to fraction form
    1,392,023,959.31/1,921,029,471.50 = 756,981,592.31/x
  3. Step 3: Cross multiply
    1,392,023,959.31x = 1,921,029,471.50 × 756,981,592.31
  4. Step 4: Simplify right side
    1,392,023,959.31x = 1,454,183,948,197,117,440
  5. Step 5: Solve for x
    x = 1,454,183,948,197,117,440/1,392,023,959.31
  6. Step 6: Final answer
    x = 1,044,654,395.84

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Double scale
Find fourth proportional to 1,392,023,960.31, 1,921,029,472.88 and 756,981,593.31
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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.