Home / 20,776,299.48-28,689,677.43-12,949,170.06

Finding the Fourth Proportional to 20,776,299.48, 28,689,677.43 and 12,949,170.06

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Solution

The fourth proportional to 20,776,299.48, 28,689,677.43 and 12,949,170.06 is: 17,881,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,299.48 : 28,689,677.43 = 12,949,170.06 : x
  2. Step 2: Convert to fraction form
    20,776,299.48/28,689,677.43 = 12,949,170.06/x
  3. Step 3: Cross multiply
    20,776,299.48x = 28,689,677.43 × 12,949,170.06
  4. Step 4: Simplify right side
    20,776,299.48x = 371,507,512,007,613.75
  5. Step 5: Solve for x
    x = 371,507,512,007,613.75/20,776,299.48
  6. Step 6: Final answer
    x = 17,881,312.90

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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.