Home / 81,833,822.06-122,766,903.89-30,018,905.82

Finding the Fourth Proportional to 81,833,822.06, 122,766,903.89 and 30,018,905.82

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Solution

The fourth proportional to 81,833,822.06, 122,766,903.89 and 30,018,905.82 is: 45,034,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,833,822.06 : 122,766,903.89 = 30,018,905.82 : x
  2. Step 2: Convert to fraction form
    81,833,822.06/122,766,903.89 = 30,018,905.82/x
  3. Step 3: Cross multiply
    81,833,822.06x = 122,766,903.89 × 30,018,905.82
  4. Step 4: Simplify right side
    81,833,822.06x = 3,685,328,125,536,807.50
  5. Step 5: Solve for x
    x = 3,685,328,125,536,807.50/81,833,822.06
  6. Step 6: Final answer
    x = 45,034,290.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.