Home / 38,502,729-53,133,766.63-21,099,759.12

Finding the Fourth Proportional to 38,502,729, 53,133,766.63 and 21,099,759.12

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Solution

The fourth proportional to 38,502,729, 53,133,766.63 and 21,099,759.12 is: 29,117,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502,729 : 53,133,766.63 = 21,099,759.12 : x
  2. Step 2: Convert to fraction form
    38,502,729/53,133,766.63 = 21,099,759.12/x
  3. Step 3: Cross multiply
    38,502,729x = 53,133,766.63 × 21,099,759.12
  4. Step 4: Simplify right side
    38,502,729x = 1,121,109,676,978,544.75
  5. Step 5: Solve for x
    x = 1,121,109,676,978,544.75/38,502,729
  6. Step 6: Final answer
    x = 29,117,667.92

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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.