Home / 39,078,006.80-53,934,104.75-21,679,957.06

Finding the Fourth Proportional to 39,078,006.80, 53,934,104.75 and 21,679,957.06

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Solution

The fourth proportional to 39,078,006.80, 53,934,104.75 and 21,679,957.06 is: 29,921,922.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078,006.80 : 53,934,104.75 = 21,679,957.06 : x
  2. Step 2: Convert to fraction form
    39,078,006.80/53,934,104.75 = 21,679,957.06/x
  3. Step 3: Cross multiply
    39,078,006.80x = 53,934,104.75 × 21,679,957.06
  4. Step 4: Simplify right side
    39,078,006.80x = 1,169,289,074,806,307
  5. Step 5: Solve for x
    x = 1,169,289,074,806,307/39,078,006.80
  6. Step 6: Final answer
    x = 29,921,922.09

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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.