Home / 1,164,974,664.45-1,607,654,171.93-636,338,448.21

Finding the Fourth Proportional to 1,164,974,664.45, 1,607,654,171.93 and 636,338,448.21

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Solution

The fourth proportional to 1,164,974,664.45, 1,607,654,171.93 and 636,338,448.21 is: 878,141,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164,974,664.45 : 1,607,654,171.93 = 636,338,448.21 : x
  2. Step 2: Convert to fraction form
    1,164,974,664.45/1,607,654,171.93 = 636,338,448.21/x
  3. Step 3: Cross multiply
    1,164,974,664.45x = 1,607,654,171.93 × 636,338,448.21
  4. Step 4: Simplify right side
    1,164,974,664.45x = 1,023,012,161,021,087,104
  5. Step 5: Solve for x
    x = 1,023,012,161,021,087,104/1,164,974,664.45
  6. Step 6: Final answer
    x = 878,141,123.78

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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.