Home / 82,086,670.12-113,252,098.98-47,278,663.72

Finding the Fourth Proportional to 82,086,670.12, 113,252,098.98 and 47,278,663.72

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Solution

The fourth proportional to 82,086,670.12, 113,252,098.98 and 47,278,663.72 is: 65,228,713.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,086,670.12 : 113,252,098.98 = 47,278,663.72 : x
  2. Step 2: Convert to fraction form
    82,086,670.12/113,252,098.98 = 47,278,663.72/x
  3. Step 3: Cross multiply
    82,086,670.12x = 113,252,098.98 × 47,278,663.72
  4. Step 4: Simplify right side
    82,086,670.12x = 5,354,407,903,259,575
  5. Step 5: Solve for x
    x = 5,354,407,903,259,575/82,086,670.12
  6. Step 6: Final answer
    x = 65,228,713.69

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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.