Home / 81,005,146.88-111,751,479.45-47,497,522.70

Finding the Fourth Proportional to 81,005,146.88, 111,751,479.45 and 47,497,522.70

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Solution

The fourth proportional to 81,005,146.88, 111,751,479.45 and 47,497,522.70 is: 65,525,693.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,005,146.88 : 111,751,479.45 = 47,497,522.70 : x
  2. Step 2: Convert to fraction form
    81,005,146.88/111,751,479.45 = 47,497,522.70/x
  3. Step 3: Cross multiply
    81,005,146.88x = 111,751,479.45 × 47,497,522.70
  4. Step 4: Simplify right side
    81,005,146.88x = 5,307,918,432,214,337
  5. Step 5: Solve for x
    x = 5,307,918,432,214,337/81,005,146.88
  6. Step 6: Final answer
    x = 65,525,693.58

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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.