Home / 38,810,965.33-53,558,193.90-21,406,936.78

Finding the Fourth Proportional to 38,810,965.33, 53,558,193.90 and 21,406,936.78

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Solution

The fourth proportional to 38,810,965.33, 53,558,193.90 and 21,406,936.78 is: 29,541,055.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,810,965.33 : 53,558,193.90 = 21,406,936.78 : x
  2. Step 2: Convert to fraction form
    38,810,965.33/53,558,193.90 = 21,406,936.78/x
  3. Step 3: Cross multiply
    38,810,965.33x = 53,558,193.90 × 21,406,936.78
  4. Step 4: Simplify right side
    38,810,965.33x = 1,146,516,870,868,281.75
  5. Step 5: Solve for x
    x = 1,146,516,870,868,281.75/38,810,965.33
  6. Step 6: Final answer
    x = 29,541,055.24

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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.