Home / 68,571,418,131.12-102,857,473,909.08-21,403,938,123.12

Finding the Fourth Proportional to 68,571,418,131.12, 102,857,473,909.08 and 21,403,938,123.12

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Solution

The fourth proportional to 68,571,418,131.12, 102,857,473,909.08 and 21,403,938,123.12 is: 32,106,015,407.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,571,418,131.12 : 102,857,473,909.08 = 21,403,938,123.12 : x
  2. Step 2: Convert to fraction form
    68,571,418,131.12/102,857,473,909.08 = 21,403,938,123.12/x
  3. Step 3: Cross multiply
    68,571,418,131.12x = 102,857,473,909.08 × 21,403,938,123.12
  4. Step 4: Simplify right side
    68,571,418,131.12x = 2,201,555,007,050,378,117,120
  5. Step 5: Solve for x
    x = 2,201,555,007,050,378,117,120/68,571,418,131.12
  6. Step 6: Final answer
    x = 32,106,015,407.77

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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.