Home / 20,783,307.78-28,680,062.61-11,363,926.02

Finding the Fourth Proportional to 20,783,307.78, 28,680,062.61 and 11,363,926.02

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Solution

The fourth proportional to 20,783,307.78, 28,680,062.61 and 11,363,926.02 is: 15,681,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,307.78 : 28,680,062.61 = 11,363,926.02 : x
  2. Step 2: Convert to fraction form
    20,783,307.78/28,680,062.61 = 11,363,926.02/x
  3. Step 3: Cross multiply
    20,783,307.78x = 28,680,062.61 × 11,363,926.02
  4. Step 4: Simplify right side
    20,783,307.78x = 325,918,109,749,008.06
  5. Step 5: Solve for x
    x = 325,918,109,749,008.06/20,783,307.78
  6. Step 6: Final answer
    x = 15,681,724.64

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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.