Home / 20,905,878.60-28,850,932.11-14,304,313.62

Finding the Fourth Proportional to 20,905,878.60, 28,850,932.11 and 14,304,313.62

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Solution

The fourth proportional to 20,905,878.60, 28,850,932.11 and 14,304,313.62 is: 19,740,513.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,905,878.60 : 28,850,932.11 = 14,304,313.62 : x
  2. Step 2: Convert to fraction form
    20,905,878.60/28,850,932.11 = 14,304,313.62/x
  3. Step 3: Cross multiply
    20,905,878.60x = 28,850,932.11 × 14,304,313.62
  4. Step 4: Simplify right side
    20,905,878.60x = 412,692,781,184,409.50
  5. Step 5: Solve for x
    x = 412,692,781,184,409.50/20,905,878.60
  6. Step 6: Final answer
    x = 19,740,513.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.