Home / 12,645,949.05-18,968,895.45-9,771,495.57

Finding the Fourth Proportional to 12,645,949.05, 18,968,895.45 and 9,771,495.57

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Solution

The fourth proportional to 12,645,949.05, 18,968,895.45 and 9,771,495.57 is: 14,657,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645,949.05 : 18,968,895.45 = 9,771,495.57 : x
  2. Step 2: Convert to fraction form
    12,645,949.05/18,968,895.45 = 9,771,495.57/x
  3. Step 3: Cross multiply
    12,645,949.05x = 18,968,895.45 × 9,771,495.57
  4. Step 4: Simplify right side
    12,645,949.05x = 185,354,477,857,468.16
  5. Step 5: Solve for x
    x = 185,354,477,857,468.16/12,645,949.05
  6. Step 6: Final answer
    x = 14,657,221.62

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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.