Home / 81,005,154.38-111,751,489.80-47,497,530.21

Finding the Fourth Proportional to 81,005,154.38, 111,751,489.80 and 47,497,530.21

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Solution

The fourth proportional to 81,005,154.38, 111,751,489.80 and 47,497,530.21 is: 65,525,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,005,154.38 : 111,751,489.80 = 47,497,530.21 : x
  2. Step 2: Convert to fraction form
    81,005,154.38/111,751,489.80 = 47,497,530.21/x
  3. Step 3: Cross multiply
    81,005,154.38x = 111,751,489.80 × 47,497,530.21
  4. Step 4: Simplify right side
    81,005,154.38x = 5,307,919,762,788,007
  5. Step 5: Solve for x
    x = 5,307,919,762,788,007/81,005,154.38
  6. Step 6: Final answer
    x = 65,525,703.93

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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.