Home / 20,299,146.51-28,013,373.00-11,479,916.60

Finding the Fourth Proportional to 20,299,146.51, 28,013,373.00 and 11,479,916.60

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Solution

The fourth proportional to 20,299,146.51, 28,013,373.00 and 11,479,916.60 is: 15,842,596.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299,146.51 : 28,013,373.00 = 11,479,916.60 : x
  2. Step 2: Convert to fraction form
    20,299,146.51/28,013,373.00 = 11,479,916.60/x
  3. Step 3: Cross multiply
    20,299,146.51x = 28,013,373.00 × 11,479,916.60
  4. Step 4: Simplify right side
    20,299,146.51x = 321,591,185,791,734.19
  5. Step 5: Solve for x
    x = 321,591,185,791,734.19/20,299,146.51
  6. Step 6: Final answer
    x = 15,842,596.42

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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.