Home / 39,228,699.20-54,136,102.89-21,589,632.68

Finding the Fourth Proportional to 39,228,699.20, 54,136,102.89 and 21,589,632.68

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Solution

The fourth proportional to 39,228,699.20, 54,136,102.89 and 21,589,632.68 is: 29,793,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228,699.20 : 54,136,102.89 = 21,589,632.68 : x
  2. Step 2: Convert to fraction form
    39,228,699.20/54,136,102.89 = 21,589,632.68/x
  3. Step 3: Cross multiply
    39,228,699.20x = 54,136,102.89 × 21,589,632.68
  4. Step 4: Simplify right side
    39,228,699.20x = 1,168,778,575,851,106
  5. Step 5: Solve for x
    x = 1,168,778,575,851,106/39,228,699.20
  6. Step 6: Final answer
    x = 29,793,967.17

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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.