Home / 20,771,172.77-31,128,908.54-16,165,719.82

Finding the Fourth Proportional to 20,771,172.77, 31,128,908.54 and 16,165,719.82

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Solution

The fourth proportional to 20,771,172.77, 31,128,908.54 and 16,165,719.82 is: 24,226,904.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,172.77 : 31,128,908.54 = 16,165,719.82 : x
  2. Step 2: Convert to fraction form
    20,771,172.77/31,128,908.54 = 16,165,719.82/x
  3. Step 3: Cross multiply
    20,771,172.77x = 31,128,908.54 × 16,165,719.82
  4. Step 4: Simplify right side
    20,771,172.77x = 503,221,213,763,601.94
  5. Step 5: Solve for x
    x = 503,221,213,763,601.94/20,771,172.77
  6. Step 6: Final answer
    x = 24,226,904.25

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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.