Home / 12,111,068.22-18,146,037.78-7,308,666.51

Finding the Fourth Proportional to 12,111,068.22, 18,146,037.78 and 7,308,666.51

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Solution

The fourth proportional to 12,111,068.22, 18,146,037.78 and 7,308,666.51 is: 10,950,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111,068.22 : 18,146,037.78 = 7,308,666.51 : x
  2. Step 2: Convert to fraction form
    12,111,068.22/18,146,037.78 = 7,308,666.51/x
  3. Step 3: Cross multiply
    12,111,068.22x = 18,146,037.78 × 7,308,666.51
  4. Step 4: Simplify right side
    12,111,068.22x = 132,623,338,611,880.75
  5. Step 5: Solve for x
    x = 132,623,338,611,880.75/12,111,068.22
  6. Step 6: Final answer
    x = 10,950,589.68

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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.