Home / 81,687,548.16-112,728,814.56-45,018,119.16

Finding the Fourth Proportional to 81,687,548.16, 112,728,814.56 and 45,018,119.16

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Solution

The fourth proportional to 81,687,548.16, 112,728,814.56 and 45,018,119.16 is: 62,125,003.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,687,548.16 : 112,728,814.56 = 45,018,119.16 : x
  2. Step 2: Convert to fraction form
    81,687,548.16/112,728,814.56 = 45,018,119.16/x
  3. Step 3: Cross multiply
    81,687,548.16x = 112,728,814.56 × 45,018,119.16
  4. Step 4: Simplify right side
    81,687,548.16x = 5,074,839,206,627,623
  5. Step 5: Solve for x
    x = 5,074,839,206,627,623/81,687,548.16
  6. Step 6: Final answer
    x = 62,125,003.39

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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.