Home / 18,861,601.60-28,292,402.40-8,783,905.60

Finding the Fourth Proportional to 18,861,601.60, 28,292,402.40 and 8,783,905.60

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Solution

The fourth proportional to 18,861,601.60, 28,292,402.40 and 8,783,905.60 is: 13,175,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861,601.60 : 28,292,402.40 = 8,783,905.60 : x
  2. Step 2: Convert to fraction form
    18,861,601.60/28,292,402.40 = 8,783,905.60/x
  3. Step 3: Cross multiply
    18,861,601.60x = 28,292,402.40 × 8,783,905.60
  4. Step 4: Simplify right side
    18,861,601.60x = 248,517,791,878,813.41
  5. Step 5: Solve for x
    x = 248,517,791,878,813.41/18,861,601.60
  6. Step 6: Final answer
    x = 13,175,858.40

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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.