Home / 21,516,578,739.68-29,692,981,791.31-11,871,308,223.66

Finding the Fourth Proportional to 21,516,578,739.68, 29,692,981,791.31 and 11,871,308,223.66

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Solution

The fourth proportional to 21,516,578,739.68, 29,692,981,791.31 and 11,871,308,223.66 is: 16,382,462,248.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516,578,739.68 : 29,692,981,791.31 = 11,871,308,223.66 : x
  2. Step 2: Convert to fraction form
    21,516,578,739.68/29,692,981,791.31 = 11,871,308,223.66/x
  3. Step 3: Cross multiply
    21,516,578,739.68x = 29,692,981,791.31 × 11,871,308,223.66
  4. Step 4: Simplify right side
    21,516,578,739.68x = 352,494,538,924,165,038,080
  5. Step 5: Solve for x
    x = 352,494,538,924,165,038,080/21,516,578,739.68
  6. Step 6: Final answer
    x = 16,382,462,248.71

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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.