Home / 19,165,128.60-28,747,692.90-18,409,301.40

Finding the Fourth Proportional to 19,165,128.60, 28,747,692.90 and 18,409,301.40

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Solution

The fourth proportional to 19,165,128.60, 28,747,692.90 and 18,409,301.40 is: 27,613,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165,128.60 : 28,747,692.90 = 18,409,301.40 : x
  2. Step 2: Convert to fraction form
    19,165,128.60/28,747,692.90 = 18,409,301.40/x
  3. Step 3: Cross multiply
    19,165,128.60x = 28,747,692.90 × 18,409,301.40
  4. Step 4: Simplify right side
    19,165,128.60x = 529,224,943,150,740
  5. Step 5: Solve for x
    x = 529,224,943,150,740/19,165,128.60
  6. Step 6: Final answer
    x = 27,613,952.10

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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.