Home / 20,774,441.60-31,161,662.40-11,208,503.60

Finding the Fourth Proportional to 20,774,441.60, 31,161,662.40 and 11,208,503.60

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Solution

The fourth proportional to 20,774,441.60, 31,161,662.40 and 11,208,503.60 is: 16,812,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,441.60 : 31,161,662.40 = 11,208,503.60 : x
  2. Step 2: Convert to fraction form
    20,774,441.60/31,161,662.40 = 11,208,503.60/x
  3. Step 3: Cross multiply
    20,774,441.60x = 31,161,662.40 × 11,208,503.60
  4. Step 4: Simplify right side
    20,774,441.60x = 349,275,605,192,384.62
  5. Step 5: Solve for x
    x = 349,275,605,192,384.62/20,774,441.60
  6. Step 6: Final answer
    x = 16,812,755.40

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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.