Home / 20,893,026.45-31,323,056.98-13,200,456.90

Finding the Fourth Proportional to 20,893,026.45, 31,323,056.98 and 13,200,456.90

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Solution

The fourth proportional to 20,893,026.45, 31,323,056.98 and 13,200,456.90 is: 19,790,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893,026.45 : 31,323,056.98 = 13,200,456.90 : x
  2. Step 2: Convert to fraction form
    20,893,026.45/31,323,056.98 = 13,200,456.90/x
  3. Step 3: Cross multiply
    20,893,026.45x = 31,323,056.98 × 13,200,456.90
  4. Step 4: Simplify right side
    20,893,026.45x = 413,478,663,640,734.19
  5. Step 5: Solve for x
    x = 413,478,663,640,734.19/20,893,026.45
  6. Step 6: Final answer
    x = 19,790,271.39

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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.