Home / 21,085,007.40-31,591,369.98-14,155,508.52

Finding the Fourth Proportional to 21,085,007.40, 31,591,369.98 and 14,155,508.52

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Solution

The fourth proportional to 21,085,007.40, 31,591,369.98 and 14,155,508.52 is: 21,208,999.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085,007.40 : 31,591,369.98 = 14,155,508.52 : x
  2. Step 2: Convert to fraction form
    21,085,007.40/31,591,369.98 = 14,155,508.52/x
  3. Step 3: Cross multiply
    21,085,007.40x = 31,591,369.98 × 14,155,508.52
  4. Step 4: Simplify right side
    21,085,007.40x = 447,191,906,910,362.25
  5. Step 5: Solve for x
    x = 447,191,906,910,362.25/21,085,007.40
  6. Step 6: Final answer
    x = 21,208,999.29

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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.