Home / 21,181,042,235.20-29,231,902,903.84-15,819,294,008.64

Finding the Fourth Proportional to 21,181,042,235.20, 29,231,902,903.84 and 15,819,294,008.64

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Solution

The fourth proportional to 21,181,042,235.20, 29,231,902,903.84 and 15,819,294,008.64 is: 21,832,167,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181,042,235.20 : 29,231,902,903.84 = 15,819,294,008.64 : x
  2. Step 2: Convert to fraction form
    21,181,042,235.20/29,231,902,903.84 = 15,819,294,008.64/x
  3. Step 3: Cross multiply
    21,181,042,235.20x = 29,231,902,903.84 × 15,819,294,008.64
  4. Step 4: Simplify right side
    21,181,042,235.20x = 462,428,066,467,862,282,240
  5. Step 5: Solve for x
    x = 462,428,066,467,862,282,240/21,181,042,235.20
  6. Step 6: Final answer
    x = 21,832,167,715.49

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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.