Home / 18,322,813.60-27,484,220.40-11,520,368.80

Finding the Fourth Proportional to 18,322,813.60, 27,484,220.40 and 11,520,368.80

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Solution

The fourth proportional to 18,322,813.60, 27,484,220.40 and 11,520,368.80 is: 17,280,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322,813.60 : 27,484,220.40 = 11,520,368.80 : x
  2. Step 2: Convert to fraction form
    18,322,813.60/27,484,220.40 = 11,520,368.80/x
  3. Step 3: Cross multiply
    18,322,813.60x = 27,484,220.40 × 11,520,368.80
  4. Step 4: Simplify right side
    18,322,813.60x = 316,628,355,188,483.50
  5. Step 5: Solve for x
    x = 316,628,355,188,483.50/18,322,813.60
  6. Step 6: Final answer
    x = 17,280,553.20

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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.