Home / 38,765,111.68-53,496,212.89-21,362,079.70

Finding the Fourth Proportional to 38,765,111.68, 53,496,212.89 and 21,362,079.70

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Solution

The fourth proportional to 38,765,111.68, 53,496,212.89 and 21,362,079.70 is: 29,479,867.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765,111.68 : 53,496,212.89 = 21,362,079.70 : x
  2. Step 2: Convert to fraction form
    38,765,111.68/53,496,212.89 = 21,362,079.70/x
  3. Step 3: Cross multiply
    38,765,111.68x = 53,496,212.89 × 21,362,079.70
  4. Step 4: Simplify right side
    38,765,111.68x = 1,142,790,363,404,347.25
  5. Step 5: Solve for x
    x = 1,142,790,363,404,347.25/38,765,111.68
  6. Step 6: Final answer
    x = 29,479,867.69

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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.