Home / 18,863,370.40-28,295,055.60-13,123,807.60

Finding the Fourth Proportional to 18,863,370.40, 28,295,055.60 and 13,123,807.60

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Solution

The fourth proportional to 18,863,370.40, 28,295,055.60 and 13,123,807.60 is: 19,685,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863,370.40 : 28,295,055.60 = 13,123,807.60 : x
  2. Step 2: Convert to fraction form
    18,863,370.40/28,295,055.60 = 13,123,807.60/x
  3. Step 3: Cross multiply
    18,863,370.40x = 28,295,055.60 × 13,123,807.60
  4. Step 4: Simplify right side
    18,863,370.40x = 371,338,865,725,702.56
  5. Step 5: Solve for x
    x = 371,338,865,725,702.56/18,863,370.40
  6. Step 6: Final answer
    x = 19,685,711.40

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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.