Home / 20,489,320.80-30,730,044.60-6,112,857.60

Finding the Fourth Proportional to 20,489,320.80, 30,730,044.60 and 6,112,857.60

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Solution

The fourth proportional to 20,489,320.80, 30,730,044.60 and 6,112,857.60 is: 9,168,111.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489,320.80 : 30,730,044.60 = 6,112,857.60 : x
  2. Step 2: Convert to fraction form
    20,489,320.80/30,730,044.60 = 6,112,857.60/x
  3. Step 3: Cross multiply
    20,489,320.80x = 30,730,044.60 × 6,112,857.60
  4. Step 4: Simplify right side
    20,489,320.80x = 187,848,386,681,448.97
  5. Step 5: Solve for x
    x = 187,848,386,681,448.97/20,489,320.80
  6. Step 6: Final answer
    x = 9,168,111.94

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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.