Home / 38,523,188.40-53,160,849.36-21,118,938.72

Finding the Fourth Proportional to 38,523,188.40, 53,160,849.36 and 21,118,938.72

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Solution

The fourth proportional to 38,523,188.40, 53,160,849.36 and 21,118,938.72 is: 29,143,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,523,188.40 : 53,160,849.36 = 21,118,938.72 : x
  2. Step 2: Convert to fraction form
    38,523,188.40/53,160,849.36 = 21,118,938.72/x
  3. Step 3: Cross multiply
    38,523,188.40x = 53,160,849.36 × 21,118,938.72
  4. Step 4: Simplify right side
    38,523,188.40x = 1,122,700,719,936,991.12
  5. Step 5: Solve for x
    x = 1,122,700,719,936,991.12/38,523,188.40
  6. Step 6: Final answer
    x = 29,143,504.64

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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.