Home / 309,497,445.72-427,109,249.04-168,371,741.28

Finding the Fourth Proportional to 309,497,445.72, 427,109,249.04 and 168,371,741.28

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Solution

The fourth proportional to 309,497,445.72, 427,109,249.04 and 168,371,741.28 is: 232,354,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,497,445.72 : 427,109,249.04 = 168,371,741.28 : x
  2. Step 2: Convert to fraction form
    309,497,445.72/427,109,249.04 = 168,371,741.28/x
  3. Step 3: Cross multiply
    309,497,445.72x = 427,109,249.04 × 168,371,741.28
  4. Step 4: Simplify right side
    309,497,445.72x = 71,913,127,977,657,976
  5. Step 5: Solve for x
    x = 71,913,127,977,657,976/309,497,445.72
  6. Step 6: Final answer
    x = 232,354,512.04

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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.