Home / 18,804,021.60-28,209,572.64-13,399,264.20

Finding the Fourth Proportional to 18,804,021.60, 28,209,572.64 and 13,399,264.20

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Solution

The fourth proportional to 18,804,021.60, 28,209,572.64 and 13,399,264.20 is: 20,101,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804,021.60 : 28,209,572.64 = 13,399,264.20 : x
  2. Step 2: Convert to fraction form
    18,804,021.60/28,209,572.64 = 13,399,264.20/x
  3. Step 3: Cross multiply
    18,804,021.60x = 28,209,572.64 × 13,399,264.20
  4. Step 4: Simplify right side
    18,804,021.60x = 377,987,516,772,451.50
  5. Step 5: Solve for x
    x = 377,987,516,772,451.50/18,804,021.60
  6. Step 6: Final answer
    x = 20,101,418.98

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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.