Home / 39,109,802.56-53,970,715.68-21,705,136.96

Finding the Fourth Proportional to 39,109,802.56, 53,970,715.68 and 21,705,136.96

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Solution

The fourth proportional to 39,109,802.56, 53,970,715.68 and 21,705,136.96 is: 29,952,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,109,802.56 : 53,970,715.68 = 21,705,136.96 : x
  2. Step 2: Convert to fraction form
    39,109,802.56/53,970,715.68 = 21,705,136.96/x
  3. Step 3: Cross multiply
    39,109,802.56x = 53,970,715.68 × 21,705,136.96
  4. Step 4: Simplify right side
    39,109,802.56x = 1,171,441,775,663,619.50
  5. Step 5: Solve for x
    x = 1,171,441,775,663,619.50/39,109,802.56
  6. Step 6: Final answer
    x = 29,952,638.44

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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.