Home / 13,686,485,814.82-20,538,364,638.48-5,825,885,296.78

Finding the Fourth Proportional to 13,686,485,814.82, 20,538,364,638.48 and 5,825,885,296.78

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Solution

The fourth proportional to 13,686,485,814.82, 20,538,364,638.48 and 5,825,885,296.78 is: 8,742,503,969.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686,485,814.82 : 20,538,364,638.48 = 5,825,885,296.78 : x
  2. Step 2: Convert to fraction form
    13,686,485,814.82/20,538,364,638.48 = 5,825,885,296.78/x
  3. Step 3: Cross multiply
    13,686,485,814.82x = 20,538,364,638.48 × 5,825,885,296.78
  4. Step 4: Simplify right side
    13,686,485,814.82x = 119,654,156,567,226,908,672
  5. Step 5: Solve for x
    x = 119,654,156,567,226,908,672/13,686,485,814.82
  6. Step 6: Final answer
    x = 8,742,503,969.69

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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.