Home / 20,190,579.60-30,285,869.40-18,175,040.40

Finding the Fourth Proportional to 20,190,579.60, 30,285,869.40 and 18,175,040.40

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Solution

The fourth proportional to 20,190,579.60, 30,285,869.40 and 18,175,040.40 is: 27,262,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,579.60 : 30,285,869.40 = 18,175,040.40 : x
  2. Step 2: Convert to fraction form
    20,190,579.60/30,285,869.40 = 18,175,040.40/x
  3. Step 3: Cross multiply
    20,190,579.60x = 30,285,869.40 × 18,175,040.40
  4. Step 4: Simplify right side
    20,190,579.60x = 550,446,899,894,123.69
  5. Step 5: Solve for x
    x = 550,446,899,894,123.69/20,190,579.60
  6. Step 6: Final answer
    x = 27,262,560.60

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1.5x scale

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.