Home / 38,770,164.93-53,502,836.12-21,129,071.79

Finding the Fourth Proportional to 38,770,164.93, 53,502,836.12 and 21,129,071.79

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Solution

The fourth proportional to 38,770,164.93, 53,502,836.12 and 21,129,071.79 is: 29,158,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,770,164.93 : 53,502,836.12 = 21,129,071.79 : x
  2. Step 2: Convert to fraction form
    38,770,164.93/53,502,836.12 = 21,129,071.79/x
  3. Step 3: Cross multiply
    38,770,164.93x = 53,502,836.12 × 21,129,071.79
  4. Step 4: Simplify right side
    38,770,164.93x = 1,130,465,265,242,439.75
  5. Step 5: Solve for x
    x = 1,130,465,265,242,439.75/38,770,164.93
  6. Step 6: Final answer
    x = 29,158,123.71

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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.