Home / 20,697,029.34-28,563,410.07-11,997,447.90

Finding the Fourth Proportional to 20,697,029.34, 28,563,410.07 and 11,997,447.90

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Solution

The fourth proportional to 20,697,029.34, 28,563,410.07 and 11,997,447.90 is: 16,557,353.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697,029.34 : 28,563,410.07 = 11,997,447.90 : x
  2. Step 2: Convert to fraction form
    20,697,029.34/28,563,410.07 = 11,997,447.90/x
  3. Step 3: Cross multiply
    20,697,029.34x = 28,563,410.07 × 11,997,447.90
  4. Step 4: Simplify right side
    20,697,029.34x = 342,688,024,161,160.38
  5. Step 5: Solve for x
    x = 342,688,024,161,160.38/20,697,029.34
  6. Step 6: Final answer
    x = 16,557,353.16

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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.