Home / 13,480,014.40-20,220,021.60-8,378,180.80

Finding the Fourth Proportional to 13,480,014.40, 20,220,021.60 and 8,378,180.80

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Solution

The fourth proportional to 13,480,014.40, 20,220,021.60 and 8,378,180.80 is: 12,567,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,014.40 : 20,220,021.60 = 8,378,180.80 : x
  2. Step 2: Convert to fraction form
    13,480,014.40/20,220,021.60 = 8,378,180.80/x
  3. Step 3: Cross multiply
    13,480,014.40x = 20,220,021.60 × 8,378,180.80
  4. Step 4: Simplify right side
    13,480,014.40x = 169,406,996,744,705.28
  5. Step 5: Solve for x
    x = 169,406,996,744,705.28/13,480,014.40
  6. Step 6: Final answer
    x = 12,567,271.20

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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.