Home / 18,675,285.60-28,012,928.40-13,195,538.40

Finding the Fourth Proportional to 18,675,285.60, 28,012,928.40 and 13,195,538.40

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Solution

The fourth proportional to 18,675,285.60, 28,012,928.40 and 13,195,538.40 is: 19,793,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675,285.60 : 28,012,928.40 = 13,195,538.40 : x
  2. Step 2: Convert to fraction form
    18,675,285.60/28,012,928.40 = 13,195,538.40/x
  3. Step 3: Cross multiply
    18,675,285.60x = 28,012,928.40 × 13,195,538.40
  4. Step 4: Simplify right side
    18,675,285.60x = 369,645,672,398,650.56
  5. Step 5: Solve for x
    x = 369,645,672,398,650.56/18,675,285.60
  6. Step 6: Final answer
    x = 19,793,307.60

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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.