Home / 117,886,853,374.21-162,818,051,912.64-79,238,675,015.34

Finding the Fourth Proportional to 117,886,853,374.21, 162,818,051,912.64 and 79,238,675,015.34

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Solution

The fourth proportional to 117,886,853,374.21, 162,818,051,912.64 and 79,238,675,015.34 is: 109,439,571,359.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,886,853,374.21 : 162,818,051,912.64 = 79,238,675,015.34 : x
  2. Step 2: Convert to fraction form
    117,886,853,374.21/162,818,051,912.64 = 79,238,675,015.34/x
  3. Step 3: Cross multiply
    117,886,853,374.21x = 162,818,051,912.64 × 79,238,675,015.34
  4. Step 4: Simplify right side
    117,886,853,374.21x = 12,901,486,702,136,439,865,344
  5. Step 5: Solve for x
    x = 12,901,486,702,136,439,865,344/117,886,853,374.21
  6. Step 6: Final answer
    x = 109,439,571,359.01

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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.