Home / 14,508,047.12-20,021,104.80-7,981,536.51

Finding the Fourth Proportional to 14,508,047.12, 20,021,104.80 and 7,981,536.51

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Solution

The fourth proportional to 14,508,047.12, 20,021,104.80 and 7,981,536.51 is: 11,014,520.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508,047.12 : 20,021,104.80 = 7,981,536.51 : x
  2. Step 2: Convert to fraction form
    14,508,047.12/20,021,104.80 = 7,981,536.51/x
  3. Step 3: Cross multiply
    14,508,047.12x = 20,021,104.80 × 7,981,536.51
  4. Step 4: Simplify right side
    14,508,047.12x = 159,799,178,931,736.25
  5. Step 5: Solve for x
    x = 159,799,178,931,736.25/14,508,047.12
  6. Step 6: Final answer
    x = 11,014,520.26

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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.