Home / 38,578,914.72-53,238,715.32-21,175,556.04

Finding the Fourth Proportional to 38,578,914.72, 53,238,715.32 and 21,175,556.04

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Solution

The fourth proportional to 38,578,914.72, 53,238,715.32 and 21,175,556.04 is: 29,222,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578,914.72 : 53,238,715.32 = 21,175,556.04 : x
  2. Step 2: Convert to fraction form
    38,578,914.72/53,238,715.32 = 21,175,556.04/x
  3. Step 3: Cross multiply
    38,578,914.72x = 53,238,715.32 × 21,175,556.04
  4. Step 4: Simplify right side
    38,578,914.72x = 1,127,359,399,756,266.50
  5. Step 5: Solve for x
    x = 1,127,359,399,756,266.50/38,578,914.72
  6. Step 6: Final answer
    x = 29,222,164.70

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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.