Home / 38,504,678.79-53,136,503.45-20,863,567.43

Finding the Fourth Proportional to 38,504,678.79, 53,136,503.45 and 20,863,567.43

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Solution

The fourth proportional to 38,504,678.79, 53,136,503.45 and 20,863,567.43 is: 28,791,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,504,678.79 : 53,136,503.45 = 20,863,567.43 : x
  2. Step 2: Convert to fraction form
    38,504,678.79/53,136,503.45 = 20,863,567.43/x
  3. Step 3: Cross multiply
    38,504,678.79x = 53,136,503.45 × 20,863,567.43
  4. Step 4: Simplify right side
    38,504,678.79x = 1,108,617,022,353,502.38
  5. Step 5: Solve for x
    x = 1,108,617,022,353,502.38/38,504,678.79
  6. Step 6: Final answer
    x = 28,791,748.36

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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.