Home / 28,453,420.94-42,680,162.18-13,317,981.26

Finding the Fourth Proportional to 28,453,420.94, 42,680,162.18 and 13,317,981.26

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Solution

The fourth proportional to 28,453,420.94, 42,680,162.18 and 13,317,981.26 is: 19,976,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453,420.94 : 42,680,162.18 = 13,317,981.26 : x
  2. Step 2: Convert to fraction form
    28,453,420.94/42,680,162.18 = 13,317,981.26/x
  3. Step 3: Cross multiply
    28,453,420.94x = 42,680,162.18 × 13,317,981.26
  4. Step 4: Simplify right side
    28,453,420.94x = 568,413,599,906,894.88
  5. Step 5: Solve for x
    x = 568,413,599,906,894.88/28,453,420.94
  6. Step 6: Final answer
    x = 19,976,986.29

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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.