Home / 391,170,179.70-539,811,690.93-212,552,504.82

Finding the Fourth Proportional to 391,170,179.70, 539,811,690.93 and 212,552,504.82

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Solution

The fourth proportional to 391,170,179.70, 539,811,690.93 and 212,552,504.82 is: 293,320,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,170,179.70 : 539,811,690.93 = 212,552,504.82 : x
  2. Step 2: Convert to fraction form
    391,170,179.70/539,811,690.93 = 212,552,504.82/x
  3. Step 3: Cross multiply
    391,170,179.70x = 539,811,690.93 × 212,552,504.82
  4. Step 4: Simplify right side
    391,170,179.70x = 114,738,327,038,291,168
  5. Step 5: Solve for x
    x = 114,738,327,038,291,168/391,170,179.70
  6. Step 6: Final answer
    x = 293,320,741.18

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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.