Home / 81,687,541.41-112,728,805.38-45,018,112.41

Finding the Fourth Proportional to 81,687,541.41, 112,728,805.38 and 45,018,112.41

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Solution

The fourth proportional to 81,687,541.41, 112,728,805.38 and 45,018,112.41 is: 62,124,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,687,541.41 : 112,728,805.38 = 45,018,112.41 : x
  2. Step 2: Convert to fraction form
    81,687,541.41/112,728,805.38 = 45,018,112.41/x
  3. Step 3: Cross multiply
    81,687,541.41x = 112,728,805.38 × 45,018,112.41
  4. Step 4: Simplify right side
    81,687,541.41x = 5,074,838,032,441,852
  5. Step 5: Solve for x
    x = 5,074,838,032,441,852/81,687,541.41
  6. Step 6: Final answer
    x = 62,124,994.15

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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.