Home / 21,107,630.40-31,661,445.60-14,389,166.40

Finding the Fourth Proportional to 21,107,630.40, 31,661,445.60 and 14,389,166.40

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Solution

The fourth proportional to 21,107,630.40, 31,661,445.60 and 14,389,166.40 is: 21,583,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,630.40 : 31,661,445.60 = 14,389,166.40 : x
  2. Step 2: Convert to fraction form
    21,107,630.40/31,661,445.60 = 14,389,166.40/x
  3. Step 3: Cross multiply
    21,107,630.40x = 31,661,445.60 × 14,389,166.40
  4. Step 4: Simplify right side
    21,107,630.40x = 455,581,809,202,947.88
  5. Step 5: Solve for x
    x = 455,581,809,202,947.88/21,107,630.40
  6. Step 6: Final answer
    x = 21,583,749.60

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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.