Home / 18,715,123.60-28,072,685.40-5,936,628.40

Finding the Fourth Proportional to 18,715,123.60, 28,072,685.40 and 5,936,628.40

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Solution

The fourth proportional to 18,715,123.60, 28,072,685.40 and 5,936,628.40 is: 8,904,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,123.60 : 28,072,685.40 = 5,936,628.40 : x
  2. Step 2: Convert to fraction form
    18,715,123.60/28,072,685.40 = 5,936,628.40/x
  3. Step 3: Cross multiply
    18,715,123.60x = 28,072,685.40 × 5,936,628.40
  4. Step 4: Simplify right side
    18,715,123.60x = 166,657,101,409,905.38
  5. Step 5: Solve for x
    x = 166,657,101,409,905.38/18,715,123.60
  6. Step 6: Final answer
    x = 8,904,942.60

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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.