Home / 81,584,729.80-122,377,094.70-30,464,042.20

Finding the Fourth Proportional to 81,584,729.80, 122,377,094.70 and 30,464,042.20

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Solution

The fourth proportional to 81,584,729.80, 122,377,094.70 and 30,464,042.20 is: 45,696,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,584,729.80 : 122,377,094.70 = 30,464,042.20 : x
  2. Step 2: Convert to fraction form
    81,584,729.80/122,377,094.70 = 30,464,042.20/x
  3. Step 3: Cross multiply
    81,584,729.80x = 122,377,094.70 × 30,464,042.20
  4. Step 4: Simplify right side
    81,584,729.80x = 3,728,100,977,254,196.50
  5. Step 5: Solve for x
    x = 3,728,100,977,254,196.50/81,584,729.80
  6. Step 6: Final answer
    x = 45,696,063.30

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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.