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Finding the Fourth Proportional to 11,409,607.20, 17,114,410.80 and 8,871,520.80

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Solution

The fourth proportional to 11,409,607.20, 17,114,410.80 and 8,871,520.80 is: 13,307,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409,607.20 : 17,114,410.80 = 8,871,520.80 : x
  2. Step 2: Convert to fraction form
    11,409,607.20/17,114,410.80 = 8,871,520.80/x
  3. Step 3: Cross multiply
    11,409,607.20x = 17,114,410.80 × 8,871,520.80
  4. Step 4: Simplify right side
    11,409,607.20x = 151,830,851,391,944.66
  5. Step 5: Solve for x
    x = 151,830,851,391,944.66/11,409,607.20
  6. Step 6: Final answer
    x = 13,307,281.20

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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.