Home / 12,356,851.20-18,535,276.80-11,664,009.60

Finding the Fourth Proportional to 12,356,851.20, 18,535,276.80 and 11,664,009.60

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Solution

The fourth proportional to 12,356,851.20, 18,535,276.80 and 11,664,009.60 is: 17,496,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,851.20 : 18,535,276.80 = 11,664,009.60 : x
  2. Step 2: Convert to fraction form
    12,356,851.20/18,535,276.80 = 11,664,009.60/x
  3. Step 3: Cross multiply
    12,356,851.20x = 18,535,276.80 × 11,664,009.60
  4. Step 4: Simplify right side
    12,356,851.20x = 216,195,646,533,857.28
  5. Step 5: Solve for x
    x = 216,195,646,533,857.28/12,356,851.20
  6. Step 6: Final answer
    x = 17,496,014.40

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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.