Home / 261,109,249.24-391,580,779.05-86,199,716.18

Finding the Fourth Proportional to 261,109,249.24, 391,580,779.05 and 86,199,716.18

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Solution

The fourth proportional to 261,109,249.24, 391,580,779.05 and 86,199,716.18 is: 129,272,142.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,109,249.24 : 391,580,779.05 = 86,199,716.18 : x
  2. Step 2: Convert to fraction form
    261,109,249.24/391,580,779.05 = 86,199,716.18/x
  3. Step 3: Cross multiply
    261,109,249.24x = 391,580,779.05 × 86,199,716.18
  4. Step 4: Simplify right side
    261,109,249.24x = 33,754,152,014,840,560
  5. Step 5: Solve for x
    x = 33,754,152,014,840,560/261,109,249.24
  6. Step 6: Final answer
    x = 129,272,142.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.