Home / 309,717,109.10-427,418,420.96-168,597,430.20

Finding the Fourth Proportional to 309,717,109.10, 427,418,420.96 and 168,597,430.20

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Solution

The fourth proportional to 309,717,109.10, 427,418,420.96 and 168,597,430.20 is: 232,669,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,717,109.10 : 427,418,420.96 = 168,597,430.20 : x
  2. Step 2: Convert to fraction form
    309,717,109.10/427,418,420.96 = 168,597,430.20/x
  3. Step 3: Cross multiply
    309,717,109.10x = 427,418,420.96 × 168,597,430.20
  4. Step 4: Simplify right side
    309,717,109.10x = 72,061,647,393,154,816
  5. Step 5: Solve for x
    x = 72,061,647,393,154,816/309,717,109.10
  6. Step 6: Final answer
    x = 232,669,249.70

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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.