Home / 12,909,476.58-17,815,469.61-7,108,465.91

Finding the Fourth Proportional to 12,909,476.58, 17,815,469.61 and 7,108,465.91

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Solution

The fourth proportional to 12,909,476.58, 17,815,469.61 and 7,108,465.91 is: 9,809,898.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909,476.58 : 17,815,469.61 = 7,108,465.91 : x
  2. Step 2: Convert to fraction form
    12,909,476.58/17,815,469.61 = 7,108,465.91/x
  3. Step 3: Cross multiply
    12,909,476.58x = 17,815,469.61 × 7,108,465.91
  4. Step 4: Simplify right side
    12,909,476.58x = 126,640,658,437,864.66
  5. Step 5: Solve for x
    x = 126,640,658,437,864.66/12,909,476.58
  6. Step 6: Final answer
    x = 9,809,898.77

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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.