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Finding the Fourth Proportional to 18,144,003.20, 27,216,004.80 and 10,977,641.60

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Solution

The fourth proportional to 18,144,003.20, 27,216,004.80 and 10,977,641.60 is: 16,466,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,003.20 : 27,216,004.80 = 10,977,641.60 : x
  2. Step 2: Convert to fraction form
    18,144,003.20/27,216,004.80 = 10,977,641.60/x
  3. Step 3: Cross multiply
    18,144,003.20x = 27,216,004.80 × 10,977,641.60
  4. Step 4: Simplify right side
    18,144,003.20x = 298,767,546,478,279.69
  5. Step 5: Solve for x
    x = 298,767,546,478,279.69/18,144,003.20
  6. Step 6: Final answer
    x = 16,466,462.40

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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.