Home / 20,364,385.45-28,103,402.98-11,072,579.35

Finding the Fourth Proportional to 20,364,385.45, 28,103,402.98 and 11,072,579.35

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Solution

The fourth proportional to 20,364,385.45, 28,103,402.98 and 11,072,579.35 is: 15,280,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,364,385.45 : 28,103,402.98 = 11,072,579.35 : x
  2. Step 2: Convert to fraction form
    20,364,385.45/28,103,402.98 = 11,072,579.35/x
  3. Step 3: Cross multiply
    20,364,385.45x = 28,103,402.98 × 11,072,579.35
  4. Step 4: Simplify right side
    20,364,385.45x = 311,177,159,501,076.44
  5. Step 5: Solve for x
    x = 311,177,159,501,076.44/20,364,385.45
  6. Step 6: Final answer
    x = 15,280,459.13

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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.