Home / 20,680,630.04-28,538,711.88-11,513,273.60

Finding the Fourth Proportional to 20,680,630.04, 28,538,711.88 and 11,513,273.60

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Solution

The fourth proportional to 20,680,630.04, 28,538,711.88 and 11,513,273.60 is: 15,888,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680,630.04 : 28,538,711.88 = 11,513,273.60 : x
  2. Step 2: Convert to fraction form
    20,680,630.04/28,538,711.88 = 11,513,273.60/x
  3. Step 3: Cross multiply
    20,680,630.04x = 28,538,711.88 × 11,513,273.60
  4. Step 4: Simplify right side
    20,680,630.04x = 328,573,997,923,316.81
  5. Step 5: Solve for x
    x = 328,573,997,923,316.81/20,680,630.04
  6. Step 6: Final answer
    x = 15,888,007.15

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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.