Home / 81,005,783.41-111,775,955.21-49,199,401.44

Finding the Fourth Proportional to 81,005,783.41, 111,775,955.21 and 49,199,401.44

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Solution

The fourth proportional to 81,005,783.41, 111,775,955.21 and 49,199,401.44 is: 67,887,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,005,783.41 : 111,775,955.21 = 49,199,401.44 : x
  2. Step 2: Convert to fraction form
    81,005,783.41/111,775,955.21 = 49,199,401.44/x
  3. Step 3: Cross multiply
    81,005,783.41x = 111,775,955.21 × 49,199,401.44
  4. Step 4: Simplify right side
    81,005,783.41x = 5,499,310,091,227,418
  5. Step 5: Solve for x
    x = 5,499,310,091,227,418/81,005,783.41
  6. Step 6: Final answer
    x = 67,887,869.98

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Double scale
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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.