Home / 20,325,085.90-28,009,855.61-19,951,502.56

Finding the Fourth Proportional to 20,325,085.90, 28,009,855.61 and 19,951,502.56

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Solution

The fourth proportional to 20,325,085.90, 28,009,855.61 and 19,951,502.56 is: 27,495,023.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325,085.90 : 28,009,855.61 = 19,951,502.56 : x
  2. Step 2: Convert to fraction form
    20,325,085.90/28,009,855.61 = 19,951,502.56/x
  3. Step 3: Cross multiply
    20,325,085.90x = 28,009,855.61 × 19,951,502.56
  4. Step 4: Simplify right side
    20,325,085.90x = 558,838,705,908,145.31
  5. Step 5: Solve for x
    x = 558,838,705,908,145.31/20,325,085.90
  6. Step 6: Final answer
    x = 27,495,023.08

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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.