Home / 12,140,940.30-18,211,410.45-11,581,068.30

Finding the Fourth Proportional to 12,140,940.30, 18,211,410.45 and 11,581,068.30

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Solution

The fourth proportional to 12,140,940.30, 18,211,410.45 and 11,581,068.30 is: 17,371,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140,940.30 : 18,211,410.45 = 11,581,068.30 : x
  2. Step 2: Convert to fraction form
    12,140,940.30/18,211,410.45 = 11,581,068.30/x
  3. Step 3: Cross multiply
    12,140,940.30x = 18,211,410.45 × 11,581,068.30
  4. Step 4: Simplify right side
    12,140,940.30x = 210,907,588,260,783.75
  5. Step 5: Solve for x
    x = 210,907,588,260,783.75/12,140,940.30
  6. Step 6: Final answer
    x = 17,371,602.45

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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.