Home / 20,822,865.89-28,735,355.19-11,999,075.40

Finding the Fourth Proportional to 20,822,865.89, 28,735,355.19 and 11,999,075.40

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Solution

The fourth proportional to 20,822,865.89, 28,735,355.19 and 11,999,075.40 is: 16,558,608.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822,865.89 : 28,735,355.19 = 11,999,075.40 : x
  2. Step 2: Convert to fraction form
    20,822,865.89/28,735,355.19 = 11,999,075.40/x
  3. Step 3: Cross multiply
    20,822,865.89x = 28,735,355.19 × 11,999,075.40
  4. Step 4: Simplify right side
    20,822,865.89x = 344,797,693,570,591.38
  5. Step 5: Solve for x
    x = 344,797,693,570,591.38/20,822,865.89
  6. Step 6: Final answer
    x = 16,558,608.96

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1.5x scale

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.