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Finding the Fourth Proportional to 371,601,978.97, 512,843,406.32 and 204,367,713.21

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Solution

The fourth proportional to 371,601,978.97, 512,843,406.32 and 204,367,713.21 is: 282,045,414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,601,978.97 : 512,843,406.32 = 204,367,713.21 : x
  2. Step 2: Convert to fraction form
    371,601,978.97/512,843,406.32 = 204,367,713.21/x
  3. Step 3: Cross multiply
    371,601,978.97x = 512,843,406.32 × 204,367,713.21
  4. Step 4: Simplify right side
    371,601,978.97x = 104,808,634,184,445,264
  5. Step 5: Solve for x
    x = 104,808,634,184,445,264/371,601,978.97
  6. Step 6: Final answer
    x = 282,045,414.49

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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.