Home / 11,787,953,618.81-17,673,213,427.53-7,128,791,771.37

Finding the Fourth Proportional to 11,787,953,618.81, 17,673,213,427.53 and 7,128,791,771.37

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Solution

The fourth proportional to 11,787,953,618.81, 17,673,213,427.53 and 7,128,791,771.37 is: 10,687,916,031.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787,953,618.81 : 17,673,213,427.53 = 7,128,791,771.37 : x
  2. Step 2: Convert to fraction form
    11,787,953,618.81/17,673,213,427.53 = 7,128,791,771.37/x
  3. Step 3: Cross multiply
    11,787,953,618.81x = 17,673,213,427.53 × 7,128,791,771.37
  4. Step 4: Simplify right side
    11,787,953,618.81x = 125,988,658,455,841,652,736
  5. Step 5: Solve for x
    x = 125,988,658,455,841,652,736/11,787,953,618.81
  6. Step 6: Final answer
    x = 10,687,916,031.06

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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.