Home / 20,127,626.80-30,191,440.20-16,938,980.80

Finding the Fourth Proportional to 20,127,626.80, 30,191,440.20 and 16,938,980.80

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Solution

The fourth proportional to 20,127,626.80, 30,191,440.20 and 16,938,980.80 is: 25,408,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127,626.80 : 30,191,440.20 = 16,938,980.80 : x
  2. Step 2: Convert to fraction form
    20,127,626.80/30,191,440.20 = 16,938,980.80/x
  3. Step 3: Cross multiply
    20,127,626.80x = 30,191,440.20 × 16,938,980.80
  4. Step 4: Simplify right side
    20,127,626.80x = 511,412,225,872,148.19
  5. Step 5: Solve for x
    x = 511,412,225,872,148.19/20,127,626.80
  6. Step 6: Final answer
    x = 25,408,471.20

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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.