Home / 539,436,381.21-744,422,181.71-291,917,742.21

Finding the Fourth Proportional to 539,436,381.21, 744,422,181.71 and 291,917,742.21

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Solution

The fourth proportional to 539,436,381.21, 744,422,181.71 and 291,917,742.21 is: 402,846,471.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,436,381.21 : 744,422,181.71 = 291,917,742.21 : x
  2. Step 2: Convert to fraction form
    539,436,381.21/744,422,181.71 = 291,917,742.21/x
  3. Step 3: Cross multiply
    539,436,381.21x = 744,422,181.71 × 291,917,742.21
  4. Step 4: Simplify right side
    539,436,381.21x = 217,310,042,534,365,952
  5. Step 5: Solve for x
    x = 217,310,042,534,365,952/539,436,381.21
  6. Step 6: Final answer
    x = 402,846,471.06

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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.