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Finding the Fourth Proportional to 553,646,903.00, 763,672,723.37 and 355,093,902.38

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Solution

The fourth proportional to 553,646,903.00, 763,672,723.37 and 355,093,902.38 is: 489,798,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,646,903.00 : 763,672,723.37 = 355,093,902.38 : x
  2. Step 2: Convert to fraction form
    553,646,903.00/763,672,723.37 = 355,093,902.38/x
  3. Step 3: Cross multiply
    553,646,903.00x = 763,672,723.37 × 355,093,902.38
  4. Step 4: Simplify right side
    553,646,903.00x = 271,175,527,477,021,696
  5. Step 5: Solve for x
    x = 271,175,527,477,021,696/553,646,903.00
  6. Step 6: Final answer
    x = 489,798,689.40

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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.