Home / 125,891,876,278.21-188,784,060,013.11-72,869,508,022.46

Finding the Fourth Proportional to 125,891,876,278.21, 188,784,060,013.11 and 72,869,508,022.46

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Solution

The fourth proportional to 125,891,876,278.21, 188,784,060,013.11 and 72,869,508,022.46 is: 109,273,147,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,891,876,278.21 : 188,784,060,013.11 = 72,869,508,022.46 : x
  2. Step 2: Convert to fraction form
    125,891,876,278.21/188,784,060,013.11 = 72,869,508,022.46/x
  3. Step 3: Cross multiply
    125,891,876,278.21x = 188,784,060,013.11 × 72,869,508,022.46
  4. Step 4: Simplify right side
    125,891,876,278.21x = 13,756,601,575,636,943,765,504
  5. Step 5: Solve for x
    x = 13,756,601,575,636,943,765,504/125,891,876,278.21
  6. Step 6: Final answer
    x = 109,273,147,579.72

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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.