Home / 21,637,882.47-29,859,997-12,345,212.55

Finding the Fourth Proportional to 21,637,882.47, 29,859,997 and 12,345,212.55

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Solution

The fourth proportional to 21,637,882.47, 29,859,997 and 12,345,212.55 is: 17,036,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637,882.47 : 29,859,997 = 12,345,212.55 : x
  2. Step 2: Convert to fraction form
    21,637,882.47/29,859,997 = 12,345,212.55/x
  3. Step 3: Cross multiply
    21,637,882.47x = 29,859,997 × 12,345,212.55
  4. Step 4: Simplify right side
    21,637,882.47x = 368,628,009,707,362.38
  5. Step 5: Solve for x
    x = 368,628,009,707,362.38/21,637,882.47
  6. Step 6: Final answer
    x = 17,036,233.11

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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.