Home / 21,879,572.13-30,213,176.45-13,633,707.33

Finding the Fourth Proportional to 21,879,572.13, 30,213,176.45 and 13,633,707.33

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Solution

The fourth proportional to 21,879,572.13, 30,213,176.45 and 13,633,707.33 is: 18,826,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879,572.13 : 30,213,176.45 = 13,633,707.33 : x
  2. Step 2: Convert to fraction form
    21,879,572.13/30,213,176.45 = 13,633,707.33/x
  3. Step 3: Cross multiply
    21,879,572.13x = 30,213,176.45 × 13,633,707.33
  4. Step 4: Simplify right side
    21,879,572.13x = 411,917,605,160,779.88
  5. Step 5: Solve for x
    x = 411,917,605,160,779.88/21,879,572.13
  6. Step 6: Final answer
    x = 18,826,584.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.