Home / 13,590,866.72-18,755,385.36-7,479,295.40

Finding the Fourth Proportional to 13,590,866.72, 18,755,385.36 and 7,479,295.40

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Solution

The fourth proportional to 13,590,866.72, 18,755,385.36 and 7,479,295.40 is: 10,321,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,866.72 : 18,755,385.36 = 7,479,295.40 : x
  2. Step 2: Convert to fraction form
    13,590,866.72/18,755,385.36 = 7,479,295.40/x
  3. Step 3: Cross multiply
    13,590,866.72x = 18,755,385.36 × 7,479,295.40
  4. Step 4: Simplify right side
    13,590,866.72x = 140,277,067,448,275.34
  5. Step 5: Solve for x
    x = 140,277,067,448,275.34/13,590,866.72
  6. Step 6: Final answer
    x = 10,321,421.76

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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.