Home / 20,526,597,188.82-28,326,704,112.45-11,139,223,364.82

Finding the Fourth Proportional to 20,526,597,188.82, 28,326,704,112.45 and 11,139,223,364.82

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Solution

The fourth proportional to 20,526,597,188.82, 28,326,704,112.45 and 11,139,223,364.82 is: 15,372,128,239.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526,597,188.82 : 28,326,704,112.45 = 11,139,223,364.82 : x
  2. Step 2: Convert to fraction form
    20,526,597,188.82/28,326,704,112.45 = 11,139,223,364.82/x
  3. Step 3: Cross multiply
    20,526,597,188.82x = 28,326,704,112.45 × 11,139,223,364.82
  4. Step 4: Simplify right side
    20,526,597,188.82x = 315,537,484,297,745,793,024
  5. Step 5: Solve for x
    x = 315,537,484,297,745,793,024/20,526,597,188.82
  6. Step 6: Final answer
    x = 15,372,128,239.04

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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.