Home / 39,957,829.12-55,141,804.40-21,623,114.80

Finding the Fourth Proportional to 39,957,829.12, 55,141,804.40 and 21,623,114.80

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Solution

The fourth proportional to 39,957,829.12, 55,141,804.40 and 21,623,114.80 is: 29,839,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,829.12 : 55,141,804.40 = 21,623,114.80 : x
  2. Step 2: Convert to fraction form
    39,957,829.12/55,141,804.40 = 21,623,114.80/x
  3. Step 3: Cross multiply
    39,957,829.12x = 55,141,804.40 × 21,623,114.80
  4. Step 4: Simplify right side
    39,957,829.12x = 1,192,337,566,820,345.25
  5. Step 5: Solve for x
    x = 1,192,337,566,820,345.25/39,957,829.12
  6. Step 6: Final answer
    x = 29,839,898.54

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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.