Home / 139,715,543,493.80-209,608,583,659.42-38,986,326,461.75

Finding the Fourth Proportional to 139,715,543,493.80, 209,608,583,659.42 and 38,986,326,461.75

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Solution

The fourth proportional to 139,715,543,493.80, 209,608,583,659.42 and 38,986,326,461.75 is: 58,489,331,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,715,543,493.80 : 209,608,583,659.42 = 38,986,326,461.75 : x
  2. Step 2: Convert to fraction form
    139,715,543,493.80/209,608,583,659.42 = 38,986,326,461.75/x
  3. Step 3: Cross multiply
    139,715,543,493.80x = 209,608,583,659.42 × 38,986,326,461.75
  4. Step 4: Simplify right side
    139,715,543,493.80x = 8,171,868,671,731,184,959,488
  5. Step 5: Solve for x
    x = 8,171,868,671,731,184,959,488/139,715,543,493.80
  6. Step 6: Final answer
    x = 58,489,331,017.73

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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.