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Finding the Fourth Proportional to 635,988,260.73, 877,602,314.69 and 368,010,638.78

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Solution

The fourth proportional to 635,988,260.73, 877,602,314.69 and 368,010,638.78 is: 507,819,103.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,988,260.73 : 877,602,314.69 = 368,010,638.78 : x
  2. Step 2: Convert to fraction form
    635,988,260.73/877,602,314.69 = 368,010,638.78/x
  3. Step 3: Cross multiply
    635,988,260.73x = 877,602,314.69 × 368,010,638.78
  4. Step 4: Simplify right side
    635,988,260.73x = 322,966,988,419,025,472
  5. Step 5: Solve for x
    x = 322,966,988,419,025,472/635,988,260.73
  6. Step 6: Final answer
    x = 507,819,103.53

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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.